The Screamin’ Eagle® 135-Cubic-Inch Crate Engine delivers no-compromise performance for riders seeking maximum displacement, power, and torque. Engineered and tested by Harley-Davidson, this street-ready engine provides 144 hp and 149 ft-lb of torque to the rear wheel, making it ideal for wide-open throttle and high-RPM performance while offering instant passing power from cruising speed. FEATURES Street-compliant 135-cubic-inch Screamin’ Eagle® crate engine Produces 144 horsepower and 149 ft-lb of torque at the rear wheel 11.6:1 compression ratio for maximum performance Includes all-new Screamin’ Eagle® Extreme CNC-ported cylinder heads, SE8-550 high-lift cam, high-compression forged pistons, 68mm throttle body, CNC-machined Extreme Flow intake manifold, high-performance cam bearing and tappets, patent-protected 4.31" steel sleeve cylinders, 4 5/8" flywheel, 6.8 g/sec fuel injectors, and Screamin’ Eagle® Pro Billet Cam Plate and Oil Pump Ready for bolt-in installation in Original Equipment-style chassis Engineered and tested as a complete performance system by Harley-Davidson Black Granite / Gloss Black finish Stage IV Screamin’ Eagle® performance upgrade DETAILS Fits '23-later FLHXSE and FLTRXSE, '24-later FLHX, FLTRX, and FLTRXSTSE models Requires separate purchase of Head Pipe P/N 65600177 '23-'24 models require separate purchase of Cylinder Head Retrofit Kit P/N 29900147 ECM recalibration required with Screamin’ Eagle® Pro Street Tuner for proper installation Dealer installation recommended Does not fit California models Sold individually Factory assembled at Harley-Davidson Powertrain Operations, Milwaukee, Wisconsin 1-year limited warranty Screamin’ Eagle® products may not be street legal in all countries; check with local dealer
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