The O-360 was introduced in 1962 with fuel injection (designated the IO-360). This engine is still in production.
A four-cylinder version of the O-360, the O-240 was introduced in 1971.

models

• O-360-D: 210 hp (155 kW)
• IO-360-GB: 210 hp (155 kW)

specifications

• 6-cylinder, horizontally-opposed, air-cooled piston engine
• Displacement: 360 cubic inches (5.9 litres)
• Bore x stroke: 4.4375 x 3.875 inches

used by

• Cessna O-2 Skymaster
• NZAI CT-4A Airtrainer