Cometic 4.540 MLS Head Gasket - .036 - BB Chevy SP800BK use the ALL31105 pump with

use the ALL31105 pump with a 3/4" shaft/bearing

1981-1986 Chevrolet K20

81mm Gasket BoreSince 1989

Various Applications 1987-2013

Cometic 4.540 MLS Head Gasket - .036 - BB Chevy SP800BK use the ALL31105 pump withComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 036". 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