9727-18 Head bolt kit

Restoring a classic Flathead requires attention to detail, especially when it comes to the fasteners holding the top end together. This Colony head bolt kit is designed specifically for 1937 to 1948 74 and 80 cubic inch Sidevalve Big Twin models equipped with aluminum heads. These bolts feature a traditional parkerized finish, giving your engine that authentic, factory-correct look that is essential for period-accurate restorations. Built to OEM specifications, they provide the correct reach and thread pitch for the aluminum head configuration. Using the right hardware is critical for maintaining head gasket integrity on these vintage machines. This kit is sold as a complete kit, ensuring you have all the necessary bolts to secure your heads properly and keep that Big Twin running strong.