Bring your Twin Cam motorcycle up to the same 110 cubic inch displacement and power output as the CVO^™ Screamin' Eagle^® models without expensive machining or removing the engine from the chassis. This street compliant kit combines the proven SE-255 cams and cylinder heads of the CVO^™ model with exclusive Screamin' Eagle^® bolt-on 4.0" cylinders and system-matched pistons to deliver high torque and reliable everyday performance.

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• Automatic compression release-equipped cylinder heads and the flat top forged pistons combine to develop a 9.3:1 compression ratio for easy starting
• Screamin' Eagle^™ lifters ensure quiet reliable valve train operation
• Includes SE 4.0" bolt-on cylinders, CVO^™ 110 cylinder heads, SE-255 cams, forged 9.3:1 compression pistons and rings, heavy duty clutch spring, top end and cam cover gaskets, and high-capacity roller tappets
• Separate purchase of cam spacers is recommended and requires separate purchase of appropriate Automatic Compression Release Wiring Harness
• All EFI-equipped models require dealer-installed ECM calibration download or use of Screamin' Eagle^® Street Tuner Kit (priced separately)
• Recalibration is required for proper installation, See Dealer for details, Labor cost not included
• When installed by an authorized Harley-Davidson^® Dealer at the time of vehicle delivery, these kits do not impact the vehicle's limited warranty