
The Cometic MLS head gasket for GM L18 Vortec 8100 Gen‑VII big block V8 (4.280" bore, .060" compressed thickness) is the left‑hand gasket version built from multiple embossed stainless steel layers with Viton coating on the outer faces. The MLS design seals dissimilar metals without sealants, resists corrosion and shear, and uses an uncoated center shim layer to meet thickness and load distribution requirements.
Cometic GM/Mercury 8.1L 496ci 4.280in .060 inch MLS Head Gasket - LH