Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 10286 ElementsAuto Meter Gauges are the

ElementsAuto Meter Gauges are the number one choice of professional racers worldwide

liquid-filled

Fits through factory bumper cut-outs

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

Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 10286 ElementsAuto Meter Gauges are theComprised 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