Cometic 4.470 MLS Head Gasket .040 - BB Chevy / Mercury Marine 931014 875 x 15 x 1

875 x 15 x 1

Rugged Knurled and B&M Logo Engraved Locking Cap

1984-1986 Chevrolet K20

Spring Hub

Cometic 4.470 MLS Head Gasket .040 - BB Chevy / Mercury Marine 931014 875 x 15 x 1Comprised 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