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The Cometic MLS head gasket for GM LS1/LS2/LS3/LS6 Gen‑3 small‑block V8 engines (3.910" bore, 0.040" compressed thickness) includes Darton MID sleeves and multiple embossed stainless steel layers with Viton‑coated outer faces to provide sealant‑free sealing for high‑output applications. Suitable for aluminum heads on aluminum or cast‑iron blocks, it resists shear between materials. The stainless center shim controls thickness while embossed layers distribute load, reduce clamp requirements and limit bore distortion.
Cometic GM LS1 (w/M.I.D. Sleeves) 3.910 inch Bore .040 inch MLS Head Gasket
