790082 James 3 5 8 Big Bore Head Gaskets for 1966 1984 Shovelhead S

For those running a 3 5/8" big bore setup on a 1966–1984 Shovelhead, standard gaskets just won't cut it. These James Gaskets head gaskets are sold as a pair and are specifically engineered for Big Twin models including FX, FXR, Softail, and Touring models with oversized cylinders. They feature a silicone beaded surface for a superior seal and a stainless steel Firering on the gasket bore to handle the increased combustion pressures of a big bore engine. Whether you are riding a classic cruiser or a custom build, these gaskets provide the heavy-duty performance needed to keep your top end sealed tight and your vintage iron running strong.