Alpha Performance Engines (A.P.E) has put together a great package to increase the output of your stock Milwaukee 8 equipped Harley-Davidson.

Kit includes:

  • 4.250″ Cylinders
  • Forged CP-Carrillo Pistons
  • Cyclerama CR480 Cam
  • Cam Bearing
  • Cam Install Gasket Kit
  • Cometic MLS Head Gaskets
  • Cometic Base Gaskets
  • High Performance Lifters
  • Injectors (6.2gps)
  • High Performance Intake Manifold (55mm)
  • S&S Head Bolts
  • Upgraded Clutch Springs


  • We highly recommend this kit be installed by a professional & a dyno tune carried out after installation.
  • ECU Tuner required for installation & tuning

Be sure to contact the DarkSide team for expert advice on fitment for your bike before ordering.