Cometic 4.100 MLS Head Gasket .040 - SB Chevy LT1 SR91152PUO-6 Valve seats and phosphorous bronze

Valve seats and phosphorous bronze guides are installed

GM Fullsize SUV 2015-19

Properly reinforced in all critical areas

Metal Shrinker and Stretcher Combo

Cometic 4.100 MLS Head Gasket .040 - SB Chevy LT1 SR91152PUO-6 Valve seats and phosphorous bronzeComprised 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