Lycoming O-320
Videos
The Lycoming O-320 is a large family of naturally aspirated, 320 cu in air-cooled, horizontally-opposed four-cylinder, direct-drive engines produced by Lycoming Engines. Introduced in 1953, it is comm
A Lycoming O-320 on display at the Museu do Ar
An O-320-B2C mounted in a Robinson R22 helicopter
A brand new Lycoming O-320-D2A engine with baffles already mounted
An O-320-H2AD cutaway to show internal parts of the engine.
Lycoming Engines
Videos
Lycoming Engines is a major American manufacturer of aircraft engines. With a factory in Williamsport, Pennsylvania, Lycoming produces a line of horizontally opposed, air-cooled, four, six and eight-c
Lycoming O-320
…O-320 is a large family of naturally aspirated, 320 cu in (5.2 L) air-cooled, horizontally-opposed four-cylinder, direct-drive engines produced by Lycoming Engines. Introduced in 1953, it is commonly used on light aircraft such as the Cessna 172 and Piper Cherokee, and remains in production as of 2026. Different…
Lycoming water tower in Williamsport, Pennsylvania
Demorest Manufacturing Company Machine
A Demorest print advertisement
O-145-B2