Performance Engine Kits

Screamin Eagle Harley Davidson 1690 Stage 2 Big Bore Legal Kit 2007 EFI 29905-07 NOTE: Please check fitment before purchasing. If in doubt, reach out to our team. We will be glad to help. Discover a wide array of OEM Genuine and Aftermarket Parts and...

Screamin’ Eagle Milwaukee-Eight Engine Stage IV Kit - 114 to 117CI 92500073 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...

Harley Performance Valve Spring Kit 18344-05 This straight coil double spring Race Valve Spring Kit will allow the engine to rev to 7000 RPM and enable the use of higher lift cams. Springs fit with current XL and Twin Cam 7mm production valves. Complete...

Harley Screamin Eagle High Volume Oil Pump & Cam Support Plate Kit 62400264 Includes a Super Sucker oil pump to improve the oil flow rate to critical engine components, and a CNC machined billet aluminum cam plate for precise alignment of...

Harley Screamin’ Eagle Milwaukee-8 Engine Stage III Kit 92500071 Stage III 107 to 114 upgrade delivers up to 39% more power Delivers increased throttle response throughout the entire RPM range Produces flexible roll-on passing power without a...

Harley Screamin' Eagle Twin Cam 25482-10 Developed specifically for throttle body EFI systems, this cam has a modern lobe design that allows for higher valve lifts for a given duration Works great with 103 cubic inch and larger engines with free-flowing...

Harley Screamin' Eagle Automatic Compression Release Wiring Harness 70623-11 For use with Automatic Compression Release valves. NOTE: Please check fitment before purchasing. If in doubt, reach out to our team.  We will be glad to help. Discover a...

Screamin Eagle Milwaukee-8 Engine Stage III Kit 92500070 Delivers a significant increase in torque & power over stock while restoring the sensation of riding solo Delivers up to 39% more power compared to the Original Equipment engine...