747418 106CI 1737CC for Twin Cam 2007 2017KITS Come Complete with F

If you are looking to wake up your Twin Cam without the hassle of a full bottom-end teardown, these S&S Cycle Big Bore cylinder kits are the way to go. They allow you to increase your engine's displacement while retaining the stock crankshaft and stroke, meaning no crankcase modifications or rebalancing are required. The cylinders feature an increased fin area to help with heat dissipation, which is vital for high-performance air-cooled V-twins. Each kit comes ready to install, bored to the exact size with matching pistons, rings, and the necessary head and base gaskets. These kits fit various Dyna, Softail, Touring, and Trike models. Note that 2014 to 2016 Twin Cooled Touring models will require a specific head gasket set, which is sold separately.