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The Cometic MLS head gasket for GM LS1/LS2/LS3/LS6 Gen‑3/4 small‑block V8 engines (4.190" bore, 0.040" compressed thickness) employs embossed stainless steel layers with Viton‑coated outer faces to seal high‑output engines without sealants. Suitable for aluminum heads to aluminum or cast‑iron blocks, it resists shearing between materials. The uncoated stainless center shim allows thickness control while embossed layers conform load distribution and reduce bore distortion and clamp load.
Cometic GM LS1 SB 4.190 inch Bore .040 inch MLS Head Gasket
