The O-200 engine is a four-cylinder, carbureted engine that produces a maximum of 100 HP at 2,750 revolutions per minute (rpm). The O-200 is rated for low-octane aviation fuel (80/87 octane), which allows an aircraft to be fueled with either aviation fuel or standard automotive gasoline. The O-200 measures 23.18 inches high by 31.56 inches wide by 28.53 inches long, and weighs 170.18 lbs. (without motor oil or accessories).
The O-300 engine is a six-cylinder, carbureted engine that produces a maximum of 145 hp at 2,700 rpm. Like the O-200, the O-300 is rated for low-octane aviation fuel (80/87 octane). The O-300 measures 27.41 inches high by 31.50 inches wide by 35.97 inches long, and is heavier than the O-200 (248.7 lbs).
The O-470 engine is a six-cylinder, carbureted engine that produces a maximum of 230 hp at 2,400 rpm. Unlike the O-200 and O-300, the O-470 requires high-octane (100 octane) aviation fuel. The O-470 measures 28.42 inches high by 33.56 inches wide by 36.53 inches long, and weighs 388.93 lbs.
