The Cometic MLS head gasket for GM LS Gen-3/4 small block V8 (3.970 in bore) is a multi-layer steel cylinder head gasket with a compressed operating thickness of 0.056 in. It seals modern high-output engines without sealants and suits aluminum-to-aluminum or aluminum-to-iron pairings. Made with embossed stainless steel outer layers coated in Viton and an uncoated shim center, the gasket resists corrosion, rebounds under load, conforms load distribution across the sealing area, and lowers required clamp load to minimize bore distortion.
Cometic GM LS Gen-3/4 Small Block V8 .056in MLS Cylinder Head Gasket - 3.970in Bore