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We can help get you back up and running when your engine is down or build an engine you have always dreamed of. You’ll be surprised at how easy it is.

Our Engine Rebuilding Service can restore your engine back to stock or build you a big bore engine for major power and performance gains. Our staff is experienced with all types of Harley engines and has many years of experience. Our services are also affordable for all riders. All Revolution Performance service work is done entirely in our Plymouth, WI facility where we have all the tools and expertise.

To schedule your rebuild service or to get more information, contact sales at
1-866-892-2109 or email

Harley engine rebuilds done with care...

  • The engine is completely disassembled, cleaned and inspected to determine reuse or replacement of components.
  • All sealing surfaces are inspected and repaired, all threaded holes and studs are also inspected for damage.
  • Parts are machined, bored and honed to exact tolerances. Only parts that meet our strict standards are kept.
  • All bearings are replaced.
  • All gaskets and seals are replaced.
  • Covers are cleaned and polished.
  • The engine and its components are carefully reassembled.
  • After passing all of our quality tests, your engine is covered by our Limited Warranty.
  • Your engine is repackaged and ready to ship home or your engine is installed in your bike, tuned, then ready for pickup.

Note:If we are not tuning your bike, you will be responsible for all tuning after your engine build is complete.

Millennium Technologies Family of Companies logo Powersports Products & Services:
Millennium Technologies Cylinder Services website link Ballistic Performance Components website link