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Cometic MLS head gasket for GM LSX Gen‑4 small block V8 with a 4.125" bore and nominal .089 in thickness, right-hand side. Built for high-output engines, it seals aluminum-to-aluminum and aluminum-to-cast-iron interfaces without sealants. Multiple embossed stainless steel layers with Viton-coated outer faces and an uncoated shim layer provide rebound, corrosion resistance and improved load distribution while reducing required clamp load.
Cometic GM LSX Gen-4 Small Block V8 .089in MLS Cylinder Head Gasket - 4.125in Bore - RHS
