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This Cometic MLS head gasket for GM LSX Gen-4 small block V8 (4.100" bore, .040" thickness) is a multi-layer steel construction with embossed outer layers coated in Viton for heat and chemical resistance. The MLS design provides rebound and corrosion resistance while the integrated stopper layer aids combustion sealing under high load. The gasket improves clamp load distribution without increasing bore distortion and is built for aluminum-to-aluminum or aluminum-to-iron head/block sealing in demanding engine environments.
Cometic GM 4.1in Bore .040in MLX 4-Layer Head Gasket - Right
