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Cometic MLX four-layer head gasket for GM LSX Gen-4 Small Block V8 (left side) is a .040" compressed-thickness gasket featuring an integrated stopper layer to improve combustion sealing and clamp load distribution. Built from multi-layer steel materials similar to MLS gaskets, the MLX design helps seal modern high-output engines while avoiding the need for sealants or re-torque after installation.
Cometic GM LSX LHS 4.15in Bore .040 inch MLX 4 Layer Head Gasket
