Ardun overhead valve heads for the Flathead Ford were the old-school hot rodder's original secret weapon. But only between 200 and 250 pairs were originally cast, and these days they are extremely rare to come upon. That's why we were super excited to be able to document a Bonneville land speed racing build Keith and Jeff Dorton of Automotive Specialists (https://www.automotivespecialists.com) were doing for racer Doug Kenny. Check out this build and all they had to do to make this Ardun make over 700 horsepower on just 10 pounds of boost!

If you'd like to see what more stock style Flathead looks like inside and out, check out this video:    • All the Oddities of Ford's Famous Fla...  

By the way, I borrowed a few clips from the excellent Iron Trap Garage YouTube channel to help you see what more stock Ardun heads look like. Please check out that entire video here:    • How Does An Ardun OHV Conversion Work??  

Engine Builder: Automotive Specialists -- https://www.automotivespecialists.com/