The Cometic MLS head gasket for GM LS Gen-3/4 small block V8 (4.100 in bore) is a multi-layer steel cylinder head gasket with a compressed operating thickness of 0.140 in. It seals high-output engines without additional sealants and suits aluminum-to-aluminum or aluminum-to-iron installations. Constructed with embossed stainless steel outer layers coated in Viton and an uncoated center shim, the gasket resists corrosion, rebounds under load, evens load distribution across the sealing area, and reduces clamp load to help minimize bore distortion.
Cometic GM LS Gen-3/4 Small Block V8 .140in MLS Cylinder Head Gasket - 4.100in Bore