When used with the Holley 1904 Air Cleaner Stud Adaptor (sold seperately), this Billet Base Plate Adaptor can be used to install any 2V/4V air cleaner (with a 5 1/8" neck) on your Holley 1904 carburetor or our Universal 1V Replacement Carb.
 Stud-mounted Air Cleaner Adaptor
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 Stud-mounted Air Cleaner Adaptor - Installed (used to install a stock oil bath air cleaner)
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 Stud-mounted A/C Adaptor with Billet Base Plate Adaptor (used to install any 2V/4V air cleaner with 5 1/8" neck)
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