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This Cometic MLS head gasket for GM LSX Gen-4 small block V8 is a left-side .040" compressed-thickness gasket with a 4.185" bore for 18-bolt heads. It uses multiple embossed stainless steel layers with Viton-coated outer layers and an uncoated stainless shim layer to handle differing head and block materials, offering strong sealing performance without the need for additional sealants.
Cometic GM LSX McLaren 4.185in Bore .040 inch MLS Head Gasket - Left
