
Cometic MLS head gasket for GM L18 Vortec 8100 Gen-VII big block V8 (.066" compressed thickness) with 4.280" bore (right side) combines embossed stainless steel layers with Viton coating for enhanced sealing performance. The multilayer design adapts to different surface finishes and reduces the need for sealants. Center shim layer options help manage thickness and distribute loads evenly to limit bore distortion under clamp load.
Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .066in MLS Cylinder Head Gasket - 4.280in Bore - RHS