Cometic 4.165" MLS Head Gasket (Each) - SB SB Chevy2 350/400 - .040" Thickness YA0857 Aluminum construction mount is rubber

Aluminum construction mount is rubber padded to protect shock canister and increase holding strength

011 in Undersize

1/4” NPT adapter

IP66 water resistance allows for operation in boats and motorcycles without worry

Cometic 4.165" MLS Head Gasket (Each) - SB SB Chevy2 350/400 - .040" Thickness YA0857 Aluminum construction mount is rubberComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". With Steam Holes. 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