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Holley 20-28 - Holley Vacuum Secondary Diaphragm Housings and Covers

  • Housing Cover, Vacuum Secondary Diaphragm, Die-Cast Aluminum, Gold Iridited, 2 and 4-Barrel, Pair
  • Application Specific
  • Estimated Ship Date: Today
 
BrandHolley
Manufacturer's Part Number20-28
Part TypeCarburetor Vacuum Secondary Covers
Product LineHolley Vacuum Secondary Diaphragm Housings and Covers
Summit Racing Part NumberHLY-20-28
UPC090127035962
 
Vacuum Secondary Cover MaterialDie-cast aluminum
Vacuum Secondary Cover FinishGold iridited
QuantitySold as a pair.
NotesDesigned for dual 4-barrel applications.
 

These Holley vacuum secondary diaphragm housings and covers are designed to replace your existing cover without any modifications. They are made of die-cast aluminum and are chrome plated for durability.

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