
Cometic's MLS head gasket for Chevrolet big‑block with 4.545 inch bore compresses to 0.060 inch and uses multiple embossed stainless steel layers with Viton-coated outer faces. The multi-layer construction resists corrosion, rebounds under load, and seals aluminum heads to iron or aluminum blocks without additional sealants, providing dependable combustion sealing for high-output big‑block V8s.
Cometic Chevy BB 4.545in Bore .060 inch MLS 396/402/427/454 Head Gasket