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Cometic top-end gasket kit for GM LLY/LBZ Duramax engines with a 4.100in bore and a .053in MLX cylinder head gasket. MLX gaskets incorporate an integrated stopper layer for combustion chamber sealing; the kit supplies the seals and gaskets needed for a rebuild. The MLX design improves clamp load around the cylinder without increasing bore distortion and eliminates the need for additional sealer, offering focused sealing where combustion pressures are highest.
Cometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket
