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The Cometic MLS head gasket for GM LSX Gen-4 small block V8 is a multi-layer steel gasket with embossed outer layers coated in Viton for heat and chemical resistance. It is a right-side 18-bolt head gasket with a compressed thickness of 0.040" and a 4.125" bore. MLS construction provides strong sealing between aluminum or iron mating surfaces and requires no sealants for proper installation.
Cometic GM LSX McLaren 4.125in Bore .040 inch MLS Head Gasket - Right
