92500144 For the rider demanding no-compromise performance. This 117ci to 131ci Stage IV Kit was engineered by the pros at Harley-Davidson to deliver instant arm-stretching torque through the entire rpm range. Made for riders seeking maximum displacement, compression, and flow, it delivers 131 horsepower and 139 ft-lb of torque to the rear wheel. This Stage IV Kit features the finest Screamin' Eagle components. Many of these new components were informed by extensive testing by the Harley-Davidson Factory Racing Team for the King of the Baggers racing series. The Stage IV kit consists of all-new Screamin' Eagle Extreme CNC-ported cylinder heads, 68mm throttle body and new cast 68mm intake manifold, new SE8-550 high-lift cam and 6.8 g/sec fuel injectors that work together to feed the engine large volumes of air and fuel to help maximize power. New forged high-compression pistons and rings are designed to withstand increased combustion forces. Also includes high-performance tappets and new patent-protected 4.31" steel sleeve cylinders. Screamin' Eagle and Stage IV badging on the cylinder heads and timer cover highlights the powerplant. Black Highlighted. Engineered and tested as a complete collection of high-performance components by the Screamin' Eagle pros at Harley-Davidson. This combination is designed for wide open throttle along with high end RPMs and a significant torque increase from a cruising speed. Provides thrilling acceleration when twisting the throttle. Can be installed without removing the engine from chassis. Race only.

JOIN IRON STABLE — SAVE 15%ADD TO BASKET — £3788.06 (SAVE 10%)

Chapter members save 15% · Sign in for member pricing

Usually dispatched within 3 working days