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The Cometic MLX cylinder head gasket for GM Gen‑V/VI big block V8 (4.560in bore) incorporates an integrated stopper layer to enhance combustion chamber sealing. MLX construction allows improved clamp load around the cylinder while avoiding increased bore distortion. This multi-layer design is intended to maintain reliable sealing under heavy loads typical of big block applications.
Cometic GM Gen-V/VI Big Block V8 .040in MLX Cylinder Head Gasket - 4.560in Bore
