Screamin’ Eagle Softail M8 Stage III Kits

THESE Stage III kits have been developed for Softail riders looking for a solid “seat of the pants” increase they can feel every time they roll on the throttle. The bump-up in displacement and compression deliver a significant increase in torque and power over stock. The Stage III 107 CI to 119 CI upgrade delivers up to 23 percent more horsepower and 17 percent more torque compared to the Original Equipment engine configuration. The 114 CI to 122 CI upgrade increases power by up to 15 percent and torque by 13 percent when compared to the Original Equipment engine configuration.

The kits are eligible for Custom Coverage under the motorcycle’s factory 24-month vehicle limited warranty when dealer-installed by an authorised H-D Dealer within 60 days of vehicle purchase and is otherwise backed by a 12-month limited warranty.

Kits include the following Screamin’ Eagle components:

  • Screamin’ Eagle 4.155 Big Bore Bolt-On Cylinders.
  • Screamin’ Eagle Forged 11.0:1 High-Compression Pistons and Rings.
  • Screamin’ Eagle SE8-447 Torque Cam.
  • Screamin’ Eagle High Capacity Tappets.
  • Screamin’ Eagle High Performance Cam Bearing.
  • Screamin’ Eagle Stage III Timer Cover & Insert.
  • Multi-layer coated Head Gaskets.
  • Cylinder Base and Cam Cover Gaskets.
  • Most necessary gaskets and seals.

Kit Features:

  • Factory engineered by Harley-Davidson as a complete performance system.
  • Delivers increased throttle response throughout the entire RPM range.
  • Produces flexible roll-on passing power, reducing the need to downshift.
  • Delivers excellent stop-light to freeway speed on-ramp acceleration.
  • Patented Big Bore cylinder design permits installation without removing the engine from the motorcycle, saving installation time and cost.
  • 49-State US EPA compliant.

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