SCREAMIN' EAGLE MILWAUKEE-EIGHT ENGINE STAGE IV KIT - 114/117CI TO 131CI

Go big or go home. With the largest displacement of any Harley-Davidson Stage Kit this 114/117CI to 131CI Stage IV Kit is designed to deliver maximum horsepower all the way to the redline. Packaged with patent-protected cylinder technology it allows for the largest bolt-on engine upgrade to any Milwaukee-Eight motor. Features new CNC-ported heads with 1mm bigger valves and fully machined combustion chambers. Coupled with the kits high-lift SE8-517 cam high compression pistons and a 64mm throttle body and intake manifold this combination delivers a thrilling 135ft-lb of torque and 124 HP rear-wheel output when paired with Screamin Eagle Street Cannon Mufflers for 131 kit customers. Its designed to run wide open at high-end RPMs and provide a significant boost of torque from cruising speed. Youll feel the difference as soon as you twist the throttle.