
The Cometic MLS head gasket for GM LS1/LS2/LS3/LS6 Gen‑3/4 small‑block V8 engines (4.160" bore, 0.060" compressed thickness) employs multiple embossed stainless steel layers with Viton‑coated outer faces to seal high‑output engines without sealants. It accommodates aluminum heads on aluminum or cast‑iron blocks and resists shear forces between materials. The center stainless shim provides thickness control while embossed layers conform load distribution and minimize bore distortion.
Cometic GM LS1 SB 4.160 inch Bore .060 inch MLS-5 Head Gasket