Cometic 4.380 MLS Head Gasket .040 - BB Chrysler FHR Padding 59% cumulative efficiency (independently tested)

59% cumulative efficiency (independently tested)

75-inch and 11

Underframe kit designed to work with most in bed hitches

1975-1986 Chevrolet K20

Cometic 4.380 MLS Head Gasket .040 - BB Chrysler FHR Padding 59% cumulative efficiency (independently tested)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