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Here at American Cycle Fabrication Inc. We run a fully equipped machine shop.  
 All of our work is done in house,  American Made With American Steel 100% Guaranteed.




We Offer Our Customers A Full Spectrum Of Motorcycle Services.
From run-of-the-mill maintenance including cylinder boring, pin fitting ,line lapping, porting and flowing heads, valve jobs, 
case modifications/repairs, welding & polishing. To complete ground-up antique restorations and custom motorcycle building.
American Cycle Fabrication Inc. Services
All  motors are installed into a test frame and run on our DYNO machine before they leave the shop.

We closely supervise and monitor the initial running of each and every motor including testing and tuning your carburetor.
Our in depth knowledge and vast experience enables us to offer exact restorations of vintage motors.
Over the years we have devised internal modifications for Flathead motors (45", 74" & 80") 
which enhance cooling, oiling, reliability and general performance. 

For the avid restorer you will be pleased to know that none of these modifications are visible externally.

Some of the upgrades and performance enhancements available to our customers:
- valve to valve guide oil passage upgrade
- breather correction timing (critical on all BigTwin FlatHeads)
- continuous crank oil feed
- cylinders and ports flowed to KR specs
- intake valve enlarged and lightened
- stainless steel black nitrate valve assembly
- oil pump shimmed , lapped & upgraded
- cam follower rollers upgrade
- pistons chamfered and flowed to heads

More Services We Offer 
Flathead oil pump upgrades
Flathead custom cam work
Transmission rebuilding
Spark plug hole repair
PA State Inspections
  Neckcup regrinding  
Engine case repair
 Benefits of our Flathead Research & Development
To Schedule an Appointment or to  Request a Quote  
Please provide Information Below Including Phone Number
Prior to assembly all  engine components & casings are run through our Ultrasonic machine.
Our Ultrasonic machine  ensures spot free cleaning. No abrasives or chemicals of any kind are used.
Before Ultrasonic Cleaning
After Ultrasonic Cleaning
Prefer the custom approach? We offer chrome plating, color power coating and Diamond cutting. 
Speed freak? Race motors built from mild to wild! Flathead riders – we offer custom cam work. 
A.M.C.A meets we attend 
 Come visit us June 12th & 13th at the Rhinebeck Grand National Meet 2015
Other A.M.C.A. meets we attend 
Eustis, FL
Oley, PA
Rhinebeck, NY
Jefferson, PA 
HomeBonneville RacingServicesIn The PressHistoryPhotosContact UsOnline StoreAbout Us
Bonneville Pictures 2014