<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
<!--Generated by ThunderDome XBRL - 08:42PM UTC 2024-03-13--><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:country="http://xbrl.sec.gov/country/2023" xmlns:currency="http://xbrl.sec.gov/currency/2023" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:ecd="http://xbrl.sec.gov/ecd/2023" xmlns:exch="http://xbrl.sec.gov/exch/2023" xmlns:hlly="http://www.holley.com/20231231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:naics="http://xbrl.sec.gov/naics/2023" xmlns:sic="http://xbrl.sec.gov/sic/2023" xmlns:srt="http://fasb.org/srt/2023" xmlns:srt-types="http://fasb.org/srt-types/2023" xmlns:stpr="http://xbrl.sec.gov/stpr/2023" xmlns:us-gaap="http://fasb.org/us-gaap/2023" xmlns:us-types="http://fasb.org/us-types/2023" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.holley.com/20231231">
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/naics/2023" schemaLocation="https://xbrl.sec.gov/naics/2023/naics-2023.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/country/2023" schemaLocation="https://xbrl.sec.gov/country/2023/country-2023.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/exch/2023" schemaLocation="https://xbrl.sec.gov/exch/2023/exch-2023.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/dei/2023" schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd"/>
  <xsd:import namespace="http://fasb.org/srt/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/sic/2023" schemaLocation="https://xbrl.sec.gov/sic/2023/sic-2023.xsd"/>
  <xsd:import namespace="http://fasb.org/us-types/2023" schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-types-2023.xsd"/>
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2023" schemaLocation="https://xbrl.sec.gov/stpr/2023/stpr-2023.xsd"/>
  <xsd:import namespace="http://fasb.org/srt-types/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-types-2023.xsd"/>
  <xsd:import namespace="http://fasb.org/us-gaap/2023" schemaLocation="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/currency/2023" schemaLocation="https://xbrl.sec.gov/currency/2023/currency-2023.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/ecd/2023" schemaLocation="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hlly-20231231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hlly-20231231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hlly-20231231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hlly-20231231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="statement-document-and-entity-information" roleURI="http://www.holley.com/20231231/role/statement-document-and-entity-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-balance-sheets" roleURI="http://www.holley.com/20231231/role/statement-consolidated-balance-sheets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">001 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-balance-sheets-parentheticals" roleURI="http://www.holley.com/20231231/role/statement-consolidated-balance-sheets-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">002 - Statement - Consolidated Balance Sheets (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-comprehensive-income-loss" roleURI="http://www.holley.com/20231231/role/statement-consolidated-statements-of-comprehensive-income-loss">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">003 - Statement - Consolidated Statements of Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-changes-in-stockholders-equity" roleURI="http://www.holley.com/20231231/role/statement-consolidated-statements-of-changes-in-stockholders-equity">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">004 - Statement - Consolidated Statements of Changes in Stockholders' Equity</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-consolidated-statements-of-cash-flows" roleURI="http://www.holley.com/20231231/role/statement-consolidated-statements-of-cash-flows">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">005 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-schedule-ii-valuation-and-qualifying-accounts" roleURI="http://www.holley.com/20231231/role/statement-schedule-ii-valuation-and-qualifying-accounts">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995452 - Disclosure - Schedule II - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-description-of-the-business-basis-of-presentation-and-summary-of-significant-accounting-policies" roleURI="http://www.holley.com/20231231/role/statement-note-1-description-of-the-business-basis-of-presentation-and-summary-of-significant-accounting-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995453 - Disclosure - Note 1 - Description of the Business, Basis of Presentation, and Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995454 - Disclosure - Note 2 - Business Combination, Acquisitions and Divestiture</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-inventory" roleURI="http://www.holley.com/20231231/role/statement-note-3-inventory">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995455 - Disclosure - Note 3 - Inventory</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-property-plant-and-equipment-net" roleURI="http://www.holley.com/20231231/role/statement-note-4-property-plant-and-equipment-net">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995456 - Disclosure - Note 4 - Property, Plant and Equipment, Net</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995457 - Disclosure - Note 5 - Goodwill and Other Intangible Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-accrued-liabilities" roleURI="http://www.holley.com/20231231/role/statement-note-6-accrued-liabilities">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995458 - Disclosure - Note 6 - Accrued Liabilities</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-debt" roleURI="http://www.holley.com/20231231/role/statement-note-7-debt">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995459 - Disclosure - Note 7 - Debt</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-common-stock-warrants-and-earnout-liability" roleURI="http://www.holley.com/20231231/role/statement-note-8-common-stock-warrants-and-earnout-liability">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995460 - Disclosure - Note 8 - Common Stock Warrants and Earn-out Liability</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-derivative-instruments" roleURI="http://www.holley.com/20231231/role/statement-note-9-derivative-instruments">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995461 - Disclosure - Note 9 - Derivative Instruments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements" roleURI="http://www.holley.com/20231231/role/statement-note-10-fair-value-measurements">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995462 - Disclosure - Note 10 - Fair Value Measurements</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-revenue-" roleURI="http://www.holley.com/20231231/role/statement-note-11-revenue-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995463 - Disclosure - Note 11 - Revenue</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995464 - Disclosure - Note 12 - Income Taxes</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-earnings-per-share" roleURI="http://www.holley.com/20231231/role/statement-note-13-earnings-per-share">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995465 - Disclosure - Note 13 - Earnings Per Share</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995466 - Disclosure - Note 14 - Benefit Plans</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995467 - Disclosure - Note 15 - Equity-based Compensation Plans</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995468 - Disclosure - Note 16 - Lease Commitments</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-17-major-reseller-customers" roleURI="http://www.holley.com/20231231/role/statement-note-17-major-reseller-customers">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995469 - Disclosure - Note 17 - Major Reseller Customers</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-acquisition-restructuring-and-management-fee-costs" roleURI="http://www.holley.com/20231231/role/statement-note-18-acquisition-restructuring-and-management-fee-costs">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995470 - Disclosure - Note 18 - Acquisition, Restructuring and Management Fee Costs</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-commitments-and-contingencies" roleURI="http://www.holley.com/20231231/role/statement-note-19-commitments-and-contingencies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995471 - Disclosure - Note 19 - Commitments and Contingencies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-significant-accounting-policies-policies" roleURI="http://www.holley.com/20231231/role/statement-significant-accounting-policies-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995472 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-schedule-ii-valuation-and-qualifying-accounts-tables" roleURI="http://www.holley.com/20231231/role/statement-schedule-ii-valuation-and-qualifying-accounts-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995473 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-tables" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995474 - Disclosure - Note 2 - Business Combination, Acquisitions and Divestiture (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-inventory-tables" roleURI="http://www.holley.com/20231231/role/statement-note-3-inventory-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995475 - Disclosure - Note 3 - Inventory (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-property-plant-and-equipment-net-tables" roleURI="http://www.holley.com/20231231/role/statement-note-4-property-plant-and-equipment-net-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995476 - Disclosure - Note 4 - Property, Plant and Equipment, Net (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets-tables" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995477 - Disclosure - Note 5 - Goodwill and Other Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-accrued-liabilities-tables" roleURI="http://www.holley.com/20231231/role/statement-note-6-accrued-liabilities-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995478 - Disclosure - Note 6 - Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-debt-tables" roleURI="http://www.holley.com/20231231/role/statement-note-7-debt-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995479 - Disclosure - Note 7 - Debt (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-tables" roleURI="http://www.holley.com/20231231/role/statement-note-10-fair-value-measurements-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995480 - Disclosure - Note 10 - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-revenue-tables" roleURI="http://www.holley.com/20231231/role/statement-note-11-revenue-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995481 - Disclosure - Note 11 - Revenue (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-tables" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995482 - Disclosure - Note 12 - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-earnings-per-share-tables" roleURI="http://www.holley.com/20231231/role/statement-note-13-earnings-per-share-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995483 - Disclosure - Note 13 - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-tables" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995484 - Disclosure - Note 14 - Benefit Plans (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-tables" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995485 - Disclosure - Note 15 - Equity-based Compensation Plans (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-tables" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995486 - Disclosure - Note 16 - Lease Commitments (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-17-major-reseller-customers-tables" roleURI="http://www.holley.com/20231231/role/statement-note-17-major-reseller-customers-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995487 - Disclosure - Note 17 - Major Reseller Customers (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-acquisition-restructuring-and-management-fee-costs-tables" roleURI="http://www.holley.com/20231231/role/statement-note-18-acquisition-restructuring-and-management-fee-costs-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995488 - Disclosure - Note 18 - Acquisition, Restructuring and Management Fee Costs (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-commitments-and-contingencies-tables" roleURI="http://www.holley.com/20231231/role/statement-note-19-commitments-and-contingencies-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995489 - Disclosure - Note 19 - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details" roleURI="http://www.holley.com/20231231/role/statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995490 - Disclosure - Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-description-of-the-business-basis-of-presentation-and-summary-of-significant-accounting-policies-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-1-description-of-the-business-basis-of-presentation-and-summary-of-significant-accounting-policies-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995491 - Disclosure - Note 1 - Description of the Business, Basis of Presentation, and Summary of Significant Accounting Policies (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995492 - Disclosure - Note 2 - Business Combination, Acquisitions and Divestiture (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995493 - Disclosure - Note 2 - Business Combination, Acquisitions, and Divestiture - Summary of Reconciles Elements of Business Combination to Cash Flows (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details-parentheticals" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995494 - Disclosure - Note 2 - Business Combination, Acquisitions, and Divestiture - Summary of Reconciles Elements of Business Combination to Cash Flows (Details) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-allocation-of-the-purchase-price-to-the-estimated-fair-values-of-assets-acquired-and-liabilities-assumed-details" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-allocation-of-the-purchase-price-to-the-estimated-fair-values-of-assets-acquired-and-liabilities-assumed-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995495 - Disclosure - Note 2 - Business Combination, Acquisitions, and Divestiture - Allocation of the Purchase Price to the Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-pro-forma-information-details" roleURI="http://www.holley.com/20231231/role/statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-pro-forma-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995496 - Disclosure - Note 2 - Business Combination, Acquisitions, and Divestiture - Summary of Pro Forma Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-inventory-schedule-of-inventory-details" roleURI="http://www.holley.com/20231231/role/statement-note-3-inventory-schedule-of-inventory-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995497 - Disclosure - Note 3 - Inventory - Schedule of Inventory (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-property-plant-and-equipment-net-schedule-of-property-plant-and-equipment-details" roleURI="http://www.holley.com/20231231/role/statement-note-4-property-plant-and-equipment-net-schedule-of-property-plant-and-equipment-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995498 - Disclosure - Note 4 - Property, Plant and Equipment, Net - Schedule of Property, Plant, and Equipment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-property-plant-and-equipment-net-schedule-of-longlived-assets-by-geographic-locations-details" roleURI="http://www.holley.com/20231231/role/statement-note-4-property-plant-and-equipment-net-schedule-of-longlived-assets-by-geographic-locations-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995499 - Disclosure - Note 4 - Property, Plant and Equipment, Net - Schedule of Long-lived Assets by Geographic Locations (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995500 - Disclosure - Note 5 - Goodwill and Other Intangible Assets (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets-schedule-of-goodwill-details" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets-schedule-of-goodwill-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995501 - Disclosure - Note 5 - Goodwill and Other Intangible Assets - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets-summary-of-intangible-assets-details" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets-summary-of-intangible-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995502 - Disclosure - Note 5 - Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-goodwill-and-other-intangible-assets-schedule-of-finitelived-intangible-assets-future-amortization-expense-details" roleURI="http://www.holley.com/20231231/role/statement-note-5-goodwill-and-other-intangible-assets-schedule-of-finitelived-intangible-assets-future-amortization-expense-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995503 - Disclosure - Note 5 - Goodwill and Other Intangible Assets - Schedule of Finite-lived Intangible Assets, Future Amortization Expense (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-accrued-liabilities-accrued-liabilities-details" roleURI="http://www.holley.com/20231231/role/statement-note-6-accrued-liabilities-accrued-liabilities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995504 - Disclosure - Note 6 - Accrued Liabilities - Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-debt-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-7-debt-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995505 - Disclosure - Note 7 - Debt (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-debt-schedule-of-debt-details" roleURI="http://www.holley.com/20231231/role/statement-note-7-debt-schedule-of-debt-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995506 - Disclosure - Note 7 - Debt - Schedule of Debt (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-debt-future-maturities-of-longterm-debt-and-amortization-of-debt-issuance-cost-details" roleURI="http://www.holley.com/20231231/role/statement-note-7-debt-future-maturities-of-longterm-debt-and-amortization-of-debt-issuance-cost-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995507 - Disclosure - Note 7 - Debt - Future Maturities of Long-term Debt and Amortization of Debt Issuance Cost (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-common-stock-warrants-and-earnout-liability-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-8-common-stock-warrants-and-earnout-liability-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995508 - Disclosure - Note 8 - Common Stock Warrants and Earn-out Liability (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-derivative-instruments-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-9-derivative-instruments-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995509 - Disclosure - Note 9 - Derivative Instruments (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-schedule-of-value-assets-and-liabilities-measured-on-recurring-basis-details" roleURI="http://www.holley.com/20231231/role/statement-note-10-fair-value-measurements-schedule-of-value-assets-and-liabilities-measured-on-recurring-basis-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995510 - Disclosure - Note 10 - Fair Value Measurements - Schedule of Value Assets and Liabilities Measured on Recurring Basis (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-summary-of-assumptions-for-estimated-fair-value-using-monte-carlo-simulation-model-details" roleURI="http://www.holley.com/20231231/role/statement-note-10-fair-value-measurements-summary-of-assumptions-for-estimated-fair-value-using-monte-carlo-simulation-model-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995511 - Disclosure - Note 10 - Fair Value Measurements - Summary of Assumptions for Estimated Fair Value Using Monte Carlo Simulation Model (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-reconciliation-of-changes-details" roleURI="http://www.holley.com/20231231/role/statement-note-10-fair-value-measurements-reconciliation-of-changes-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995512 - Disclosure - Note 10 - Fair Value Measurements - Reconciliation of Changes (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-revenue-summary-of-revenue-by-product-category-details" roleURI="http://www.holley.com/20231231/role/statement-note-11-revenue-summary-of-revenue-by-product-category-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995513 - Disclosure - Note 11 - Revenue - Summary of Revenue by Product Category (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-revenue-summary-of-revenue-based-on-geographic-location-details" roleURI="http://www.holley.com/20231231/role/statement-note-11-revenue-summary-of-revenue-based-on-geographic-location-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995514 - Disclosure - Note 11 - Revenue - Summary of Revenue Based on Geographic Location (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995515 - Disclosure - Note 12 - Income Taxes (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995516 - Disclosure - Note 12 - Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-schedule-of-income-before-income-tax-domestic-and-foreign-jurisdictions-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-schedule-of-income-before-income-tax-domestic-and-foreign-jurisdictions-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995517 - Disclosure - Note 12 - Income Taxes - Schedule of Income Before Income Tax, Domestic and Foreign Jurisdictions (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-schedule-of-provision-and-effective-tax-rates-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-schedule-of-provision-and-effective-tax-rates-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995518 - Disclosure - Note 12 - Income Taxes - Schedule of Provision and Effective Tax Rates (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995519 - Disclosure - Note 12 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-change-in-the-valuation-allowance-for-deferred-tax-assets-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-change-in-the-valuation-allowance-for-deferred-tax-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995520 - Disclosure - Note 12 - Income Taxes - Change in the Valuation Allowance for Deferred Tax Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-income-taxes-changes-in-unrecognized-tax-benefits-details" roleURI="http://www.holley.com/20231231/role/statement-note-12-income-taxes-changes-in-unrecognized-tax-benefits-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995521 - Disclosure - Note 12 - Income Taxes - Changes in Unrecognized Tax Benefits (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-earnings-per-share-schedule-of-basic-and-diluted-earning-per-share-details" roleURI="http://www.holley.com/20231231/role/statement-note-13-earnings-per-share-schedule-of-basic-and-diluted-earning-per-share-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995522 - Disclosure - Note 13 - Earnings Per Share - Schedule of Basic and Diluted Earning Per Share (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-earnings-per-share-schedule-of-antidilutive-securities-excluded-from-computation-of-earnings-per-share-details" roleURI="http://www.holley.com/20231231/role/statement-note-13-earnings-per-share-schedule-of-antidilutive-securities-excluded-from-computation-of-earnings-per-share-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995523 - Disclosure - Note 13 - Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995524 - Disclosure - Note 14 - Benefit Plans (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-summary-of-changes-in-the-benefit-obligation-and-plan-assets-and-the-plan-funded-status-details" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-summary-of-changes-in-the-benefit-obligation-and-plan-assets-and-the-plan-funded-status-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995525 - Disclosure - Note 14 - Benefit Plans - Summary of Changes in the Benefit Obligation and Plan Assets and the Plan Funded Status (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-schedule-of-pre-tax-amounts-recognized-in-other-comprehensive-income-details" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-schedule-of-pre-tax-amounts-recognized-in-other-comprehensive-income-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995526 - Disclosure - Note 14 - Benefit Plans - Schedule of Pre Tax Amounts Recognized in Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-summarizes-the-components-of-net-periodic-benefit-cost-details" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-summarizes-the-components-of-net-periodic-benefit-cost-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995527 - Disclosure - Note 14 - Benefit Plans - Summarizes the Components of Net Periodic Benefit Cost (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-benefit-plans-schedule-of-defined-benefit-plan-assumptions-details" roleURI="http://www.holley.com/20231231/role/statement-note-14-benefit-plans-schedule-of-defined-benefit-plan-assumptions-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995528 - Disclosure - Note 14 - Benefit Plans - Schedule of Defined Benefit Plan, Assumptions (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995529 - Disclosure - Note 15 - Equity-based Compensation Plans (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-summary-of-restricted-stock-units-activity-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-summary-of-restricted-stock-units-activity-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995530 - Disclosure - Note 15 - Equity-based Compensation Plans - Summary of Restricted Stock Units Activity (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-equity-instruments-other-than-options-valuation-using-blackscholes-option-pricing-model-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-equity-instruments-other-than-options-valuation-using-blackscholes-option-pricing-model-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995531 - Disclosure - Note 15 - Equity-based Compensation Plans - Schedule of Share-Based Payment Award Equity Instruments Other Than Options Valuation Using Black-Scholes Option Pricing Model (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-summary-of-stock-option-activity-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-summary-of-stock-option-activity-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995532 - Disclosure - Note 15 - Equity-based Compensation Plans - Summary of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-stock-options-valuation-using-blackscholes-option-pricing-model-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-stock-options-valuation-using-blackscholes-option-pricing-model-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995533 - Disclosure - Note 15 - Equity-based Compensation Plans - Schedule of Share-Based Payment Award Stock Options Valuation Using Black-Scholes Option Pricing Model (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-schedule-of-profit-interest-units-valuation-using-blackscholes-option-pricing-model-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-schedule-of-profit-interest-units-valuation-using-blackscholes-option-pricing-model-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995534 - Disclosure - Note 15 - Equity-based Compensation Plans - Schedule of Profit Interest Units Valuation using Black-Scholes Option Pricing Model (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-equitybased-compensation-plans-schedule-of-components-of-equitybased-compensation-expense-details" roleURI="http://www.holley.com/20231231/role/statement-note-15-equitybased-compensation-plans-schedule-of-components-of-equitybased-compensation-expense-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995535 - Disclosure - Note 15 - Equity-based Compensation Plans - Schedule of Components of Equity-based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995536 - Disclosure - Note 16 - Lease Commitments (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-schedule-of-operating-lease-assets-and-obligations-details" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-schedule-of-operating-lease-assets-and-obligations-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995537 - Disclosure - Note 16 - Lease Commitments - Schedule of Operating Lease Assets and Obligations (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-schedule-of-operating-lease-expense-supplemental-cash-flow-information-details" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-schedule-of-operating-lease-expense-supplemental-cash-flow-information-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995538 - Disclosure - Note 16 - Lease Commitments - Schedule of Operating Lease Expense Supplemental Cash Flow Information (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-lease-commitments-schedule-of-future-minimum-rental-payments-for-operating-leases-details" roleURI="http://www.holley.com/20231231/role/statement-note-16-lease-commitments-schedule-of-future-minimum-rental-payments-for-operating-leases-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995539 - Disclosure - Note 16 - Lease Commitments - Schedule of Future Minimum Rental Payments for Operating Leases (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-17-major-reseller-customers-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-17-major-reseller-customers-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995540 - Disclosure - Note 17 - Major Reseller Customers (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-17-major-reseller-customers-schedules-of-concentration-of-risk-details" roleURI="http://www.holley.com/20231231/role/statement-note-17-major-reseller-customers-schedules-of-concentration-of-risk-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995541 - Disclosure - Note 17 - Major Reseller Customers - Schedules of Concentration of Risk (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-acquisition-restructuring-and-management-fee-costs-details-textual" roleURI="http://www.holley.com/20231231/role/statement-note-18-acquisition-restructuring-and-management-fee-costs-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995542 - Disclosure - Note 18 - Acquisition, Restructuring and Management Fee Costs (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-18-acquisition-restructuring-and-management-fee-costs-summary-of-total-acquisitions-and-restructuring-costs-details" roleURI="http://www.holley.com/20231231/role/statement-note-18-acquisition-restructuring-and-management-fee-costs-summary-of-total-acquisitions-and-restructuring-costs-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995543 - Disclosure - Note 18 - Acquisition, Restructuring and Management Fee Costs - Summary of Total Acquisitions and Restructuring Costs (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-19-commitments-and-contingencies-schedule-of-accrual-for-product-warranties-details" roleURI="http://www.holley.com/20231231/role/statement-note-19-commitments-and-contingencies-schedule-of-accrual-for-product-warranties-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">995544 - Disclosure - Note 19 - Commitments and Contingencies - Schedule of Accrual For Product Warranties (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="hlly_AcceleratedSharebasedPaymentArrangementExpense" name="AcceleratedSharebasedPaymentArrangementExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_AccessoriesMember" name="AccessoriesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AccruedFreightCurrent" name="AccruedFreightCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="hlly_AccruedLiabilitiesAndOtherNoncurrentLiabilitiesMember" name="AccruedLiabilitiesAndOtherNoncurrentLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AccruedLiabilitiesDisclosureTextBlock" name="AccruedLiabilitiesDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AccruedReturnsAndAllowancesCurrent" name="AccruedReturnsAndAllowancesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AcquisitionAndRestructuringCosts" name="AcquisitionAndRestructuringCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AcquisitionCostsAndManagementFees" name="AcquisitionCostsAndManagementFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_AdvanceEngineManagementIncMember" name="AdvanceEngineManagementIncMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_AllowanceCashDiscountReserveMember" name="AllowanceCashDiscountReserveMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_AmendedAndRestatedForwardPurchaseAgreementMember" name="AmendedAndRestatedForwardPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AmortizationOfDebtIssuanceCostsYearFive" name="AmortizationOfDebtIssuanceCostsYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AmortizationOfDebtIssuanceCostsYearFour" name="AmortizationOfDebtIssuanceCostsYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AmortizationOfDebtIssuanceCostsYearOne" name="AmortizationOfDebtIssuanceCostsYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AmortizationOfDebtIssuanceCostsYearThree" name="AmortizationOfDebtIssuanceCostsYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AmortizationOfDebtIssuanceCostsYearTwo" name="AmortizationOfDebtIssuanceCostsYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_AssumptionOfEarnoutLiability" name="AssumptionOfEarnoutLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_AssumptionOfWarrantLiability" name="AssumptionOfWarrantLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_BaerIncMember" name="BaerIncMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_BrothersMailOrderIndustriesIncMember" name="BrothersMailOrderIndustriesIncMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_BusinessCombinationContingentConsiderationSharesIssuableShares" name="BusinessCombinationContingentConsiderationSharesIssuableShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="hlly_BusinessCombinationIntangibleAssetsIncludingGoodwillAcquired" name="BusinessCombinationIntangibleAssetsIncludingGoodwillAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccrued" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccrued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="hlly_CorporateHeadquartersMember" name="CorporateHeadquartersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_CustomerAMember" name="CustomerAMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DebtInstrumentCovenantConsolidatedNetLeverageRatio" name="DebtInstrumentCovenantConsolidatedNetLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DebtInstrumentCovenantMinimumLiquidity" name="DebtInstrumentCovenantMinimumLiquidity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DebtInstrumentPeriodicPaymentPercentageOfAnnualExcessCashFlow" name="DebtInstrumentPeriodicPaymentPercentageOfAnnualExcessCashFlow" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DebtInstrumentWithdrawnAmount" name="DebtInstrumentWithdrawnAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DecapitalizationOfRightofuseAssetsUponLeaseTerminationOrModification" name="DecapitalizationOfRightofuseAssetsUponLeaseTerminationOrModification" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DeferredTaxAssetsChangeInValuationAllowanceTableTextBlock" name="DeferredTaxAssetsChangeInValuationAllowanceTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DeferredTaxAssetsInterestExpenseLimitation" name="DeferredTaxAssetsInterestExpenseLimitation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DeferredTaxAssetsLiabilitiesNotYetDeductible" name="DeferredTaxAssetsLiabilitiesNotYetDeductible" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DeferredTaxAssetsReservesOnAssets" name="DeferredTaxAssetsReservesOnAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DeferredTaxAssetsRightofuseLiability" name="DeferredTaxAssetsRightofuseLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DeferredTaxLiabilitiesTradename" name="DeferredTaxLiabilitiesTradename" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="hlly_DefinedBenefitPlanBenefitObligationExpensesPaid" name="DefinedBenefitPlanBenefitObligationExpensesPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DefinedBenefitPlanPlanAssetsExpensesPaid" name="DefinedBenefitPlanPlanAssetsExpensesPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_DefinedContributionPensionMember" name="DefinedContributionPensionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_DefinedContributionPlanEmployerDiscretionaryContributionPercentOfMatch" name="DefinedContributionPlanEmployerDiscretionaryContributionPercentOfMatch" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_DelayedDrawTermLoanMember" name="DelayedDrawTermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_EarnOutAdjustment" name="EarnOutAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_EarnOutLiabilityMember" name="EarnOutLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_EarnOutSharesMember" name="EarnOutSharesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_EarnOuts" name="EarnOuts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_EffectiveIncomeTaxRateReconciliationSection162mLimitationAmount" name="EffectiveIncomeTaxRateReconciliationSection162mLimitationAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_EffectiveIncomeTaxRateReconciliationTransactionCosts" name="EffectiveIncomeTaxRateReconciliationTransactionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_ElectronicSystemsMember" name="ElectronicSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_EmpowerSponsorHoldingsLlcMember" name="EmpowerSponsorHoldingsLlcMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_ExhaustMember" name="ExhaustMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_FairValueAdjustmentOfWarrantsDueToClassificationAsLiabilities" name="FairValueAdjustmentOfWarrantsDueToClassificationAsLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_FdicDepositsMaturities" name="FdicDepositsMaturities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_FinspeedClassicInstrumentsAdsRocketAndSpeartechMember" name="FinspeedClassicInstrumentsAdsRocketAndSpeartechMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_FinspeedLlcMember" name="FinspeedLlcMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_FirstLienNoteDueNovember172028Member" name="FirstLienNoteDueNovember172028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_GainLossOnTerminationOfLeases" name="GainLossOnTerminationOfLeases" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_HolleyParentHoldingsLlcMember" name="HolleyParentHoldingsLlcMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_IncreaseDecreaseInPrepaidsAndOtherCurrentAssets" name="IncreaseDecreaseInPrepaidsAndOtherCurrentAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_InterestRateCollarLiabilityMember" name="InterestRateCollarLiabilityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_IssuanceOfEarnoutShares" name="IssuanceOfEarnoutShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_IssuanceOfEarnoutSharesShares" name="IssuanceOfEarnoutSharesShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_JohnsAcquisitionMember" name="JohnsAcquisitionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_JohnsSouthernKentuckyClassicsAndVestaMotorsportsMember" name="JohnsSouthernKentuckyClassicsAndVestaMotorsportsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MeasurementInputPriceHurdleOneMember" name="MeasurementInputPriceHurdleOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MeasurementInputPriceThresholdMember" name="MeasurementInputPriceThresholdMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MeasurementInputSharePrice1Member" name="MeasurementInputSharePrice1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MeasurementInputStrikePriceMember" name="MeasurementInputStrikePriceMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MechanicalSystemMember" name="MechanicalSystemMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MergerAgreementMember" name="MergerAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_MonteCarloSimulationModelMember" name="MonteCarloSimulationModelMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_NetCashProceedsFromBusinessCombinationAndPIPEFinancing" name="NetCashProceedsFromBusinessCombinationAndPIPEFinancing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_NetContributionsFromBusinessCombinationAndPIPEFinancing" name="NetContributionsFromBusinessCombinationAndPIPEFinancing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_OutstandingTermOfTheEarnoutShare" name="OutstandingTermOfTheEarnoutShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_PaymentsForRedemptionOfCommonStock" name="PaymentsForRedemptionOfCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_PermanentTaxDifferences" name="PermanentTaxDifferences" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_PipeInvestorsMember" name="PipeInvestorsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_PrincipalPaymentMember" name="PrincipalPaymentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_PrivateAndPublicWarrantsMember" name="PrivateAndPublicWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_PrivatePlacementWarrantsMember" name="PrivatePlacementWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ProceedsFromBusinessCombinationAndFinancingNetOfIssuanceCostsPaid" name="ProceedsFromBusinessCombinationAndFinancingNetOfIssuanceCostsPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ProceedsFromForwardPurchaseAgreement" name="ProceedsFromForwardPurchaseAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ProceedsFromPIPEFinancing" name="ProceedsFromPIPEFinancing" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_ProfitInterestUnitsMember" name="ProfitInterestUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_PublicWarrantsMember" name="PublicWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_RacequipMember" name="RacequipMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_RelatedPartyAcquisitionAndManagementFeeCosts" name="RelatedPartyAcquisitionAndManagementFeeCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ResearchDevelopmentPreProductionAndStartUpCosts" name="ResearchDevelopmentPreProductionAndStartUpCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_ResellerCustomersMember" name="ResellerCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_RisksAndUncertaintiesPolicyTextBlock" name="RisksAndUncertaintiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_SafetyMember" name="SafetyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ScheduleOfAcquisitionRestructuringAndManagementFeeCostsTableTextBlock" name="ScheduleOfAcquisitionRestructuringAndManagementFeeCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ScheduleOfElementsOfBusinessCombinationToCashFlowsTableTextBlock" name="ScheduleOfElementsOfBusinessCombinationToCashFlowsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ScheduleOfIntangibleAssetsTableTextBlock" name="ScheduleOfIntangibleAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ScheduleOfOperatingLeaseAssetsAndObligationsTableTextBlock" name="ScheduleOfOperatingLeaseAssetsAndObligationsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_ScheduleOfSharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" name="ScheduleOfSharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_SecSchedule1209ValuationAllowancesAndReservesChargedAgainstAllowances" name="SecSchedule1209ValuationAllowancesAndReservesChargedAgainstAllowances" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_SentinelCapitalPartnersMember" name="SentinelCapitalPartnersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_SharebasedCompensationArrangementEquityInstrumentsOtherThanOptionsTimebasedAwards" name="SharebasedCompensationArrangementEquityInstrumentsOtherThanOptionsTimebasedAwards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="hlly_SharebasedCompensationArrangementVestingAwardRightsPercentageOfInitialTargetAwards" name="SharebasedCompensationArrangementVestingAwardRightsPercentageOfInitialTargetAwards" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="hlly_ShareholdersEquityMember" name="ShareholdersEquityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_SouthernKentuckyClassicsMember" name="SouthernKentuckyClassicsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_StockIssuedDuringPeriodSharesWarrantsExercised" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_StockIssuedDuringPeriodValueWarrantsExercised" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="hlly_StockIssuedInPeriodSharesRecapitalizationTransactionNet" name="StockIssuedInPeriodSharesRecapitalizationTransactionNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_StockIssuedInPeriodValueRecapitalizationTransactionNet" name="StockIssuedInPeriodValueRecapitalizationTransactionNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_SubscriptionAgreementMember" name="SubscriptionAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_TaxEffectsOfFairValueAdjustmentOfWarrants" name="TaxEffectsOfFairValueAdjustmentOfWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_TermLoanMember" name="TermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_The2021OmnibusIncentivePlanMember" name="The2021OmnibusIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_The401kMember" name="The401kMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_TheCreditAgreementMember" name="TheCreditAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_TotalAcquisitionRestructuringAndManagementFees" name="TotalAcquisitionRestructuringAndManagementFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_TradeNames1Member" name="TradeNames1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_TrancheOneMember" name="TrancheOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_WarrantAndForwardPurchaseAgreementLiabilitiesPolicyTextBlock" name="WarrantAndForwardPurchaseAgreementLiabilitiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_WarrantLiability" name="WarrantLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="hlly_WarrantLiabilityPrivatePlacementWarrantsMember" name="WarrantLiabilityPrivatePlacementWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_WarrantLiabilityPublicWarrantsMember" name="WarrantLiabilityPublicWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="hlly_WarrantLiabilityTextBlock" name="WarrantLiabilityTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-10-fair-value-measurements-reconciliation-of-changes-details" name="statement-statement-note-10-fair-value-measurements-reconciliation-of-changes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-10-fair-value-measurements-schedule-of-value-assets-and-liabilities-measured-on-recurring-basis-details" name="statement-statement-note-10-fair-value-measurements-schedule-of-value-assets-and-liabilities-measured-on-recurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-10-fair-value-measurements-summary-of-assumptions-for-estimated-fair-value-using-monte-carlo-simulation-model-details" name="statement-statement-note-10-fair-value-measurements-summary-of-assumptions-for-estimated-fair-value-using-monte-carlo-simulation-model-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-10-fair-value-measurements-tables" name="statement-statement-note-10-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-11-revenue-summary-of-revenue-based-on-geographic-location-details" name="statement-statement-note-11-revenue-summary-of-revenue-based-on-geographic-location-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-11-revenue-summary-of-revenue-by-product-category-details" name="statement-statement-note-11-revenue-summary-of-revenue-by-product-category-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-11-revenue-tables" name="statement-statement-note-11-revenue-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-change-in-the-valuation-allowance-for-deferred-tax-assets-details" name="statement-statement-note-12-income-taxes-change-in-the-valuation-allowance-for-deferred-tax-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-changes-in-unrecognized-tax-benefits-details" name="statement-statement-note-12-income-taxes-changes-in-unrecognized-tax-benefits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" name="statement-statement-note-12-income-taxes-schedule-of-components-of-income-tax-expense-benefit-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" name="statement-statement-note-12-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-schedule-of-income-before-income-tax-domestic-and-foreign-jurisdictions-details" name="statement-statement-note-12-income-taxes-schedule-of-income-before-income-tax-domestic-and-foreign-jurisdictions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-schedule-of-provision-and-effective-tax-rates-details" name="statement-statement-note-12-income-taxes-schedule-of-provision-and-effective-tax-rates-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-12-income-taxes-tables" name="statement-statement-note-12-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-13-earnings-per-share-schedule-of-antidilutive-securities-excluded-from-computation-of-earnings-per-share-details" name="statement-statement-note-13-earnings-per-share-schedule-of-antidilutive-securities-excluded-from-computation-of-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-13-earnings-per-share-schedule-of-basic-and-diluted-earning-per-share-details" name="statement-statement-note-13-earnings-per-share-schedule-of-basic-and-diluted-earning-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-13-earnings-per-share-tables" name="statement-statement-note-13-earnings-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-14-benefit-plans-schedule-of-defined-benefit-plan-assumptions-details" name="statement-statement-note-14-benefit-plans-schedule-of-defined-benefit-plan-assumptions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-14-benefit-plans-schedule-of-pre-tax-amounts-recognized-in-other-comprehensive-income-details" name="statement-statement-note-14-benefit-plans-schedule-of-pre-tax-amounts-recognized-in-other-comprehensive-income-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-14-benefit-plans-summarizes-the-components-of-net-periodic-benefit-cost-details" name="statement-statement-note-14-benefit-plans-summarizes-the-components-of-net-periodic-benefit-cost-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-14-benefit-plans-summary-of-changes-in-the-benefit-obligation-and-plan-assets-and-the-plan-funded-status-details" name="statement-statement-note-14-benefit-plans-summary-of-changes-in-the-benefit-obligation-and-plan-assets-and-the-plan-funded-status-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-14-benefit-plans-tables" name="statement-statement-note-14-benefit-plans-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-schedule-of-components-of-equitybased-compensation-expense-details" name="statement-statement-note-15-equitybased-compensation-plans-schedule-of-components-of-equitybased-compensation-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-schedule-of-profit-interest-units-valuation-using-blackscholes-option-pricing-model-details" name="statement-statement-note-15-equitybased-compensation-plans-schedule-of-profit-interest-units-valuation-using-blackscholes-option-pricing-model-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-equity-instruments-other-than-options-valuation-using-blackscholes-option-pricing-model-details" name="statement-statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-equity-instruments-other-than-options-valuation-using-blackscholes-option-pricing-model-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-stock-options-valuation-using-blackscholes-option-pricing-model-details" name="statement-statement-note-15-equitybased-compensation-plans-schedule-of-sharebased-payment-award-stock-options-valuation-using-blackscholes-option-pricing-model-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-summary-of-restricted-stock-units-activity-details" name="statement-statement-note-15-equitybased-compensation-plans-summary-of-restricted-stock-units-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-summary-of-stock-option-activity-details" name="statement-statement-note-15-equitybased-compensation-plans-summary-of-stock-option-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-15-equitybased-compensation-plans-tables" name="statement-statement-note-15-equitybased-compensation-plans-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-16-lease-commitments-schedule-of-future-minimum-rental-payments-for-operating-leases-details" name="statement-statement-note-16-lease-commitments-schedule-of-future-minimum-rental-payments-for-operating-leases-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-16-lease-commitments-schedule-of-operating-lease-assets-and-obligations-details" name="statement-statement-note-16-lease-commitments-schedule-of-operating-lease-assets-and-obligations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-16-lease-commitments-schedule-of-operating-lease-expense-supplemental-cash-flow-information-details" name="statement-statement-note-16-lease-commitments-schedule-of-operating-lease-expense-supplemental-cash-flow-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-16-lease-commitments-tables" name="statement-statement-note-16-lease-commitments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-17-major-reseller-customers-schedules-of-concentration-of-risk-details" name="statement-statement-note-17-major-reseller-customers-schedules-of-concentration-of-risk-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-17-major-reseller-customers-tables" name="statement-statement-note-17-major-reseller-customers-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-18-acquisition-restructuring-and-management-fee-costs-summary-of-total-acquisitions-and-restructuring-costs-details" name="statement-statement-note-18-acquisition-restructuring-and-management-fee-costs-summary-of-total-acquisitions-and-restructuring-costs-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-18-acquisition-restructuring-and-management-fee-costs-tables" name="statement-statement-note-18-acquisition-restructuring-and-management-fee-costs-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-19-commitments-and-contingencies-schedule-of-accrual-for-product-warranties-details" name="statement-statement-note-19-commitments-and-contingencies-schedule-of-accrual-for-product-warranties-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-19-commitments-and-contingencies-tables" name="statement-statement-note-19-commitments-and-contingencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-2-business-combination-acquisitions-and-divestiture-allocation-of-the-purchase-price-to-the-estimated-fair-values-of-assets-acquired-and-liabilities-assumed-details" name="statement-statement-note-2-business-combination-acquisitions-and-divestiture-allocation-of-the-purchase-price-to-the-estimated-fair-values-of-assets-acquired-and-liabilities-assumed-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-pro-forma-information-details" name="statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-pro-forma-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details" name="statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details-parentheticals" name="statement-statement-note-2-business-combination-acquisitions-and-divestiture-summary-of-reconciles-elements-of-business-combination-to-cash-flows-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-2-business-combination-acquisitions-and-divestiture-tables" name="statement-statement-note-2-business-combination-acquisitions-and-divestiture-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-3-inventory-schedule-of-inventory-details" name="statement-statement-note-3-inventory-schedule-of-inventory-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-3-inventory-tables" name="statement-statement-note-3-inventory-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-4-property-plant-and-equipment-net-schedule-of-longlived-assets-by-geographic-locations-details" name="statement-statement-note-4-property-plant-and-equipment-net-schedule-of-longlived-assets-by-geographic-locations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-4-property-plant-and-equipment-net-schedule-of-property-plant-and-equipment-details" name="statement-statement-note-4-property-plant-and-equipment-net-schedule-of-property-plant-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-4-property-plant-and-equipment-net-tables" name="statement-statement-note-4-property-plant-and-equipment-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-5-goodwill-and-other-intangible-assets-schedule-of-finitelived-intangible-assets-future-amortization-expense-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-schedule-of-finitelived-intangible-assets-future-amortization-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-5-goodwill-and-other-intangible-assets-schedule-of-goodwill-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-schedule-of-goodwill-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-5-goodwill-and-other-intangible-assets-summary-of-intangible-assets-details" name="statement-statement-note-5-goodwill-and-other-intangible-assets-summary-of-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-5-goodwill-and-other-intangible-assets-tables" name="statement-statement-note-5-goodwill-and-other-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-6-accrued-liabilities-accrued-liabilities-details" name="statement-statement-note-6-accrued-liabilities-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-6-accrued-liabilities-tables" name="statement-statement-note-6-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-7-debt-future-maturities-of-longterm-debt-and-amortization-of-debt-issuance-cost-details" name="statement-statement-note-7-debt-future-maturities-of-longterm-debt-and-amortization-of-debt-issuance-cost-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-7-debt-schedule-of-debt-details" name="statement-statement-note-7-debt-schedule-of-debt-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-note-7-debt-tables" name="statement-statement-note-7-debt-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-schedule-ii-valuation-and-qualifying-accounts-tables" name="statement-statement-schedule-ii-valuation-and-qualifying-accounts-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details" name="statement-statement-schedule-ii-valuation-and-qualifying-accounts-valuation-and-qualifying-accounts-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="hlly_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
