16787-99-X Cylinder head & base gasket kit. 3-7/8" bore

Designed for 1999 to 2017 Twin Cam engines, this James Gaskets kit is the standard replacement for 103-inch motors or early 88-inch engines that have been bored out to 95 inches. The kit services one engine and features two 0.036-inch blue PTFE head gaskets with protective armour for a high-integrity seal. It also includes the two required cylinder base o-rings. This is a reliable top-end sealing solution for big-bore Twin Cams, excluding Twin Cooled models, ensuring your compression stays where it belongs. Sold as a kit, it provides the professional-grade components needed for a top-end refresh and long-term durability.