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Mr. Gasket MLS Head Gasket 396-502 Chevrolet Big Block Mark IV 1965-1990

4.540" Bore

PART# 3151G

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Overview

Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.

A typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket's proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use. Mr. Gasket provides a Limited Lifetime Warranty for MLS cylinder head gaskets.

Specs

ApplicationBig Block Chevy
BrandMr. Gasket
Compressed Thickness.040 inch
Compression RatioUp to 16:1
Emission Code5
EngineChevrolet Big Block Mark IV
Gasket Bore4.540 inch
Gasket LineMLS
MaterialMulti-Layered Steel
PackagingRetail
Product TypeHead Gasket
Quantity Per Pkg.1
WarrantyLimited Lifetime Warranty
Weight1.2000
Part Number3151G

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Warranty Information

Limited Lifetime Warranty: See Details

Applications

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      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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