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Cometic head and base kit for a 3-9/16-inch bore with a .040-inch head gasket and .018-inch base. The multi-layer construction conforms load distribution across sealing surfaces and requires less clamp load, helping to limit bore distortion. No sealants or re-torque are required, offering a durable sealing option for engines that need consistent cylinder sealing.
Cometic Millennium 3-9/16in Bore Head & Base Kit .040in H/G & .018inB/G
