In fact, the manufacturer had an entire line of head-themed engines, including the Knucklehead, Panhead, and Shovelhead, with some featuring in the rarest Harley-Davidson motorcycles ever built.
Shovelhead, Sportster, and Dyna Harleys, but they don't shy away from other, more complicated tasks either. The 1940 Harley-Davidson is a pure example of Hog Killers' talent. It started its life ...