Valve Cover Gasket Set - Performance - 262-400 Chevrolet Small Block Gen I 1955-86

Mr. Gasket 179, Valve Cover Gaskets, Cork/Rubber, Chevy Small Block, Pair. Extra Thick 5/16"

PART# 179

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Cork-rubber gaskets use evenly sized cork particles distributed evenly throughout the rubber binder . Result is a compressible valve cover gasket without leak paths. Our gasket gaskets are .170 in thicker than standard valve cover gaskets. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability.


  • Provides Excellent Flange Sealing And Durability
  • For High-Performance Street, Drag Race & Oval Track Use


BrandMr. Gasket
Emission Code1
EngineChevrolet Small Block Gen I
PackagingRetail - Skin Pack
Product TypeValve Cover Gaskets
Valve Cover Gasket MaterialPerformance
Valve Cover Gasket Thickness.312"
WarrantyLimited 90 Day Warranty
Part Number179


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Warranty Information

Limited 90 Day Warranty: See Details


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        *Free Shipping & Handling only offered to the contiguous US on orders over $100.

        Some parts are not legal for use in California or other states with similar regulations.