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The Cometic MLX top-end gasket kit for GM LB7 Duramax with a 4.130in bore includes a .053in MLX cylinder head gasket and the seals required for a reliable rebuild. MLX gaskets add an integrated stopper layer for combustion chamber sealing, improving clamp load distribution without increasing bore distortion. StreetPro and MLX materials are selected to meet the demands of heavy-duty diesel applications and maintain consistent sealing under load.
Cometic GM LB7 Duramax Top End Gasket Kit - 4.130in Bore - .053in MLX Cylinder Head Gasket
