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Cometic MLX-4 head gasket for GM LS9 engines (4.100in bore, .040in) with parallel cooling provides improved combustion sealing via an integrated stopper layer. The MLX design increases clamp load around the cylinder without adding bore distortion, offering enhanced sealing performance for high-output or high-stress engine applications where reliable chamber sealing is critical.
Cometic GM LS9 4.100in Bore .040in MLX-4 Head Gasket w/ Parallel Cooling - LHS
