Fred Offenhauser

Fred H. Offenhauser, Jr. (November 11, 1888 – August 17, 1973), was an American machinist and self taught automotive engineer who developed the Offenhauser racing engine, nicknamed the "Offy", which dominated competition in the Indianapolis 500 race for decades. He also built the Novi engine, which was designed by Bud Winfield and Leo Goossen.