
Cometic MLS cylinder head gasket for GM L18 Vortec 8100 Gen‑VII Big Block V8 (.040 in) with a 4.280 in bore, right-hand side. The multi-layer stainless stack features embossed, Viton-coated outer layers and an uncoated center shim to control compressed thickness. This MLS assembly rebounds under load, resists corrosion, and seals dissimilar head and block materials without requiring additional sealants.
Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .040in MLS Cylinder Head Gasket - 4.280in Bore - RHS