KIT,PWR PERF UPGR,117,LGL,BLK

Turn your Original Equipment 110 cubic inch model into a fast, reliable 117 cubic inch Twin Cam hauler without having to remove the motor from the chassis. This Street Performance Kit combines system-matched Screaminu2019 Eagle big bore cylinders, forged pistons and performance cams and valve train components with the Original Equipment cylinder heads for a cost-effective boost in torque and performance. Black finish Exclusive bolt-on 4.125" cylinders are engineered with high strength slim-wall spigots that slip into the factory 110CI crank case without any additional machining 4.125" flat top pistons team with the stock cylinder heads to produce a performance-enhancing 9.9:1 compression ratio High-lift SE-259E cam produces a boost in torque throughout the RPM range All EFI-equipped models require dealer-installed ECM calibration download or use of the tunable Screamin' Eagle Street Tuner Kit* (priced separately) Recalibration is required for proper installation, See Dealer for details, Labor cost not included Includes 4.125" Bolt-On Cylinders, Forged 9.9:1 Compression Pistons & Rings, 58mm Throttle Body, High Flow Fuel Injectors, SE-259E Cams, Perfect-Fit Pushrods, High-Capacity Roller Tappets, Inner Cam Bearing, Top End & Cam Cover Gasket