This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight® engine - all the way to the redline. The system-matched combination of larger displacement cylinders, free flowing CNC-Ported cylinder heads and a cam with the highest available valve lift are the starting point to building the perfect engine for the performance junkie. Designed for a high level of flexibility, this package is ideal for riders who like to comfortably cruise at lower rpm but still have plenty of arm-pulling acceleration when you whack the throttle. Kit includes CNC Ported Cylinder Heads with Performance Valve Springs, 64mm Throttle Body, High Flow Injectors (5.5g/s), 4.075" Bolt-On Cylinders, Forged 11:1 High Compression Aluminum Coated Pistons and Rings, SE8-515 Cam, Cam Bearing Upgrade, High Performance Tappets, Multi-layer Coated Head Gaskets, High Capacity Clutch Springs (1200N) and most necessary gaskets and seals. For ’17 and ’18 Touring models, installation of oil pump cover P/N 62400206 is recommended (sold separately). All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. See Dealer for details.
- Stage IV Kit 114 to 117CI - Air/Oil Cooled
- CVO™ Black Granite - Matches CVO™ Engine
- Increases power by up to 40% when compared to the Original Equipment engine configurations
- Delivers increased throttle response throughout the entire RPM range
- Produces flexible roll-on passing power without a required downshift
- Delivers excellent stop-light to freeway speed on-ramp acceleration
- Retains Original Equipment Factory Warranty
Warranty1 year limited warranty – Go to www.h-d.com/warranty for full details
Requires ECM CalibrationYes
Sold in UnitEach
In The BoxScreamin’ Eagle Cylinder Heads with Performance Valve Springs, Throttle Body, High Flow Injectors, Bolt-On Cylinders, Pistons, Piston Rings, Cam, Cam Bearings, Tappets, Head Gaskets, Top End, Cylinder Base and Cam Cover Gaskets, and Clutch Springs
Upgrade Stage LevelStage IV
Fits ’18-later CVO™ FLHXSE and FLTRXSE models equipped with air/oil cooled 117CI Milwaukee-Eight® engine. Requires separate purchase of Cam Drive Retention Kit P/N 25566-06. Installation may require Cam Spacer Kit P/N 25928-06. For '18 Touring models, installation of Oil Pump Cover P/N 62400206 is recommended (sold separately).All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. Pending approval for use in California on '20 models. Refer to H-D®.com/shop for status.
Bike not listed?
Select your year and model to see all the parts that fit your bike.
- These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.
Q & A
Please Hold Your Iron Horses