124" Hot Set Up® Engine Performance Kits / '99-'17 Twin Cams

No Shipping to CA Transform your Twin Cam Harley Davidson into a formidable 124" powerhouse with the S&S Cycles 124" Hot Set Up® Engine Performance Kit. This comprehensive kit is designed for Twin Cam owners looking to significantly upgrade their stock engine using the original crankcases, all without the need for crankcase modifications. With a black powder coat finish, this performance kit not only boosts your engine's performance but also enhances its appearance. Here’s what the kit includes and why it’s the ultimate upgrade: Key Features: Comprehensive Upgrade: Includes S&S heads 91cc, 4.125” bore cylinders, and forged 10.8:1 flat-top pistons, ensuring a significant increase in displacement and performance. Enhanced Flywheel Assembly: Comes with an S&S 4.625” stroke flywheel assembly, providing a solid foundation for the increased power output. High-Performance Cams: Features S&S .640” lift gear drive Easy Start cams, optimizing your engine's timing and efficiency