17034-78-S Top end gasket kit. Shovelhead 3-5/8" big bore

Building a big bore Shovelhead requires gaskets that can handle the increased cylinder diameter and heat. This James Gaskets top end kit is specifically designed for 1966 to 1984 Shovelhead engines running 3-5/8 inch big bore cylinders. The kit is sold as a complete kit and includes high-performance .045 inch blue PTFE coated head gaskets for a superior seal. You also get Rubber Coated Metal cylinder base gaskets and rocker cover gaskets, which are known for their excellent sealing properties and durability. With all the necessary O-rings, gaskets, and seals included, this kit provides everything a mechanic needs to complete a top-end rebuild on a high-performance Shovelhead with confidence.