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The Cometic StreetPro top-end gasket kit for GM LB7 Duramax with a 4.100in bore includes a .045in MLS cylinder head gasket and required seals for a dependable rebuild. StreetPro kits are offered as top-end or bottom-end solutions; combining both completes an engine overhaul. MLS construction with embossed outer layers and an uncoated stainless center provides durable sealing, even under challenging surface finishes and load conditions.
Cometic GM LB7 Duramax Top End Gasket Kit - 4.100in Bore - .045in MLS Cylinder Head Gasket
