Cometic 4.250 MLS Head Gasket .040 - AMC 390/401 931217 one-piece aluminum drum and lightweight

one-piece aluminum drum and lightweight ring gear to reduce rotating mass and improve ET

Triage engine health and setup changes using Peak RPM Memory recall with one touch review

blue or red with your choice of 2'' or 3'' anti-submarine belts

1976-1976 Ford P-350

Cometic 4.250 MLS Head Gasket .040 - AMC 390/401 931217 one-piece aluminum drum and lightweightComprised 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