Cometic GM Gen II/ Mark IV BB 4.630in Bore .040in MLS (396 / 402 / 427 / 454) Head Gasket - C5331-040 1979 Porsche 928 Base Chevrolet G30 Chevy Van 1987

Cometic GM Gen II/ Mark IV BB 4.630in Bore .040in MLS (396 / 402 / 427 / 454) Head Gasket - C5331-040 1979 Porsche 928 Base Chevrolet G30 Chevy Van 1987Comprised 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

SKU: 20314419625 · From hgidocs.co