Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 10286 NPT mounting nut are included

NPT mounting nut are included

liquid-filled

Head socks or hoods are a knit blend of flame-retardant cotton and Aramid material to offer outstanding moisture wicking properties for comfort and safety to be SFI 3

Fits 2019+ GM 1500 with 8L90E WITH accumulator *Does not fit vehicles WITHOUT accumulator*

Centerlink

Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 10286 NPT mounting nut are includedComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 027". 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