Similar ideas popular now
Ardun heads: Created by Zora Arkus-Duntov (circa 1947), the Ardun Manufacturing company fabricated overhead valve cylinder heads with hemispherical combustion chambers that could be bolted to the Ford V-8 60 (flathead) block. Precursor to the Chrysler "hemi," Ardun heads delivered serious horsepower gains for hot rodders and racers privileged enough to afford them.
American Made, Motus V4 engine. Yes, executed very well. A 'muscle car' engine look on a bike, well done.