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The Cometic MLS head gasket for GM LS1/LS2/LS3/LS6 Gen‑3/4 small‑block V8 engines (4.160" bore, 0.056" compressed thickness) uses multiple embossed stainless steel layers with Viton‑coated outer faces to provide sealant‑free sealing for high‑output applications. It fits aluminum heads to aluminum or cast‑iron blocks, resisting shear between materials. The uncoated stainless shim controls thickness while embossed layers distribute load, reduce required clamp force and limit bore distortion.
Cometic GM LS1 SB 4.160 inch Bore .056 inch MLS-5 Head Gasket
