Cometic's MLS cylinder head gasket for the GM LSX Gen‑4 small block V8 is a .056in multilayer steel gasket with a 4.060in bore and provisions for 1/2in and 3/8in studs on the left-hand side. HP shim technology increases clamp load around the combustion chamber to improve sealability on open‑deck blocks. Multiple embossed outer layers combine AMP coating with an uncoated stainless shim for controlled load distribution, reduced bore distortion, and a Viton coating for tougher sealing environments.
Cometic GM LSX Gen-4 Small Block V8 .056in MLS Cyl Head Gskt-4.060in Bore-1/2in and 3/8in Studs-LHS