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The Cometic MLS head gasket for GM LS Gen-3/4 small block V8 (4.000 in bore) is a multi-layer steel cylinder head gasket with a compressed operating thickness of 0.086 in. It seals modern high-output engines without sealants and suits aluminum-to-aluminum or aluminum-to-iron assemblies. Constructed from embossed stainless steel layers with Viton-coated outer faces and an uncoated shim center, the gasket resists corrosion, rebounds under load, distributes sealing loads evenly, and reduces required clamp load to limit bore distortion.
Cometic GM LS Gen-3/4 Small Block V8 .086in MLS Cylinder Head Gasket - 4.000in Bore
