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Cometic MLS head gasket for the GM L18 Vortec 8100 Gen‑VII 8.1L big‑block V8 (.066" MLS, 4.350" bore, right-hand side) features multiple embossed stainless steel layers with Viton-coated outer faces for heat resistance. The MLS construction seals aluminum-to-aluminum or aluminum-to-iron joints without sealants, rebounds under load to resist corrosion, and helps distribute clamp load for reliable sealing in high-output engines.
Cometic GM / Mercury 8.1L 496ci 4.350in Bore .066in MLS-5 RH Head Gasket
