Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Cometic MLS head gasket for GM LS1/LS2/LS3/LS6 Gen‑3/4 small‑block V8 engines (4.190" bore, 0.045" compressed thickness) uses multiple embossed stainless steel layers with Viton‑coated outer faces to deliver sealant‑free sealing for high‑output engines. It fits aluminum heads on aluminum or cast‑iron blocks and withstands shear between dissimilar materials. A stainless center shim controls thickness while embossed layers distribute load, reduce required clamp force and help limit bore distortion.
Cometic GM LS1 SB 4.190 inch Bore .045 inch MLS Head Gasket
