****New Products And Services****
We invite you to share our friendly, knowledgeable and professional approach to motorcycling.
Motorcycling and engine building is our passion - We love what we do.
We pride ourselves on the time we take with our customers, getting to know them,
and finding what they want out of their motorcycle.
We provide top quality service and stand behind our work.
We Have Been Setting Bonneville Land Speed Records Since 2005
*Our Flathead and Panhead motors currently hold 42 Bonneville land speed records*
Expert Motor Builders You Can Trust !!
Paul Friebus sets a new Land Speed Record!
Record Time: 180.659 MPH
A.C.F.’s Newly Developed Oil Pump Upgrade
Harley Davidson Flathead 45 WLA, ULH, U, UL Early & Late Oil Pump Upgrade.
Designed to improve cylinder, piston and general cooling on all Harley Davidson Flathead Motors.
USA made, Bonneville tested and a proven achievement.
Before And After Upgrade Shown
Our reproduction of KR & WR Model Harley Davidson Intake Manifolds
This manifold is 100% correct for restoration or performance work on all Flathead motors.
We use this manifold for 74 & 45 c.u. in. Flathead upgrades to a 4 bolt carb. Ported, Flowed and CAD plated.
100% guarantee, American made with American Steel. Bonneville tested and a proven achievement.
Available In CAD plated, Parkerized & Stainless
In House Machined: WR Intake & Exhaust Valves
Made with Stainless Steel and Black Nitrate stem - High Flow & Lightened.
Our WR Intake & WL Oversize Intake Valves + STD Exhaust Valves are In house Machined & 100% guaranteed.
American made with American Steel. Bonneville tested and a proven achievement.
Intake valve seat angle can be ordered at 30 or 45 degrees
In House Machined: Cams & Cylinders
Coming Soon: Cams & Cylinders