Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .070in MLS Cylinder Head Gasket - 4.350in Bore - LHS 2024-gas-gas-ex-300-esi1779508 Valve Simulators (sold separately): Why

Valve Simulators (sold separately): Why do you need them

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Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .070in MLS Cylinder Head Gasket - 4.350in Bore - LHS 2024-gas-gas-ex-300-esi1779508 Valve Simulators (sold separately): WhyComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 098". 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