Milwaukee-Eight Engine Stage IV Kit - 92500062

Milwaukee-Eight Engine Stage IV Kit - 92500062

Harley Davidson

Product #: 92500062

  • $2,499.95 $2,699.95

Product Details

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, Top End, Cylinder Base and Cam Cover Gaskets, High Capacity Clutch Springs and Plates.

  • Black highlighted
  • Delivers up to 52% more power when compared to the Original Equipment engine configurations
  • Provides thrilling acceleration when twisting the throttle
  • Delivers increased response throughout the entire RPM range
  • Maintains flat torque curve from cruising RPM to redline
  • Can be installed without removing the engine from the chassis
  • Retains Original Equipment Factory Warranty
  • 50-State U.S. EPA compliant

Fits '18-later Softail® and '17-later Touring models equipped with air/oil cooled 107CI Milwaukee-Eight® engine. Does not fit Trike models. Requires separate purchase of Cam Drive Retention Kit P/N 25566-06. Installation may require Cam Spacer Kit P/N 25928-06. All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. Screamin' Eagle® performance upgrades for FLSB are 49-state US EPA approved. Pending approval for use in California.


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