That engine, the four-cylinder, 134 cubic inch "Go-Devil", was the brainchild of Willys chief engineer Delmar "Barney" Roos, who joined the company in 1938 after spending time at Pierce Arrow ...
For an automobile engine, see Willys Go Devil engine. For the hand-powered rail car, see Handcar. For U.S. Army unit nicknamed Go Devils, see 60th Infantry Regiment (United States). The go-devil is a ...