The Offenhauser Racing Engine, often shorted to the Offy, was a series of racing engines that dominated American Championship Car racing for more than fifty years. Versions of the engine won the India
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An Offenhauser sprint "midget" racer
An Offenhauser midget engine, polished for display
Fred H. Offenhauser, Jr., was an American machinist and self taught automotive engineer who developed the Offenhauser racing engine, nicknamed the "Offy", which dominated competition in the Indianapol
Offenhauser
…used in top-level competition through the 1970s and into the early 1980s. It is still popular in vintage racing. The engine took its name from founder Fred Offenhauser, who originally partnered in the project with Harry Miller. Numerous configurations and displacements were produced over the decades, including I-4…