Cometic GM Marine 3.0 Iron Duke 4.000in Bore .040in Vortec MLS Headgasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.040". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
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Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1962-1967	Chevrolet	Chevy II	Base
1962-1968	Chevrolet	Chevy II	Nova
1978-1979	Chevrolet	Monza	2+2
1978-1979	Chevrolet	Monza	2+2 Sport
1978-1979	Chevrolet	Monza	2+2 Spyder
1978-1979	Chevrolet	Monza	Base
1978-1979	Chevrolet	Monza	S
1978	Chevrolet	Monza	Sport
1969-1970	Chevrolet	Nova	Base
1963-1965	Chevrolet	P10 Series	Base