Head Gasket - MLS - 396-502 Chevrolet Big Block Mark IV 1965-90

Multi-Layered Steel - 4.370" Bore

PART# 3150G

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396-454, Mr. Gasket 3150G, Head Gasket, Multi-Layer Steel, 4.370 in, .040 in Thick, Chevy Big Block, Each


ApplicationBig Block Chevy
BrandMr. Gasket
Compressed Thickness.040 inch
Compression RatioUp to 16:1
Emission Code3
EngineChevrolet Big Block Mark IV
Gasket Bore4.370 inch
Gasket LineMLS
MaterialMulti-Layered Steel
Product TypeHead Gasket
Quantity Per Pkg.1
WarrantyLimited Lifetime Warranty
Part Number3150G

Tech Resources


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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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.