Cometic 4.185 MLS Head Gasket .051 - GM LSX LH 2070120 place the correct size feeler

place the correct size feeler gauge beneath the ground strap then tighten knob to set plug gap

Adjust speed & rev limiters*

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racing springs

Cometic 4.185 MLS Head Gasket .051 - GM LSX LH 2070120 place the correct size feelerComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 051". 18 Bolt Heads. Left Side. 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