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Cometic StreetPro top-end gasket kit for GM LS1/LS6 Gen-3 small-block V8 engines with a 4.030in bore and a .040in MLS cylinder head gasket. The kit supplies head gaskets and seals for a top-end rebuild and features MLS multilayer construction with AMP-coated embossed outer layers and an uncoated stainless center shim to control thickness. Embossed layers conform to different surface finishes, reduce clamp load and distribute sealing load evenly.
Cometic GM LS1/LS6 Gen-3 Small Block V8 Top End Gasket Kit-4.030in Bore-.040in MLS Cyl Head Gasket
