Lycoming O-360 Aircraft Engine - 180 HP, 361 Cubic Inch Air-Cooled Powerplant for General Aviation

The Lycoming O-360 is a four-cylinder, horizontally opposed, air-cooled aircraft engine renowned for its exceptional reliability and widespread use in general aviation. As an evolution of the O-320 series, this engine delivers increased power output and enhanced performance capabilities.

• Type: Four-cylinder, horizontally opposed (flat-four), air-cooled
• Displacement: 361 cubic inches (5.9 liters)
• Power Output: Typically produces 180 horsepower
• Compression Ratio: Typically 8.5:1
• Weight: Approximately 258 to 280 pounds (dry weight)
• Fuel Type: Aviation gasoline (100LL or lower-octane fuels)
• Cooling: Air-cooled
• Ignition System: Dual magnetos for redundancy
• Redline RPM: Typically 2,700 RPM

The O-360 engine powers numerous general aviation aircraft models including:

• Cessna 172 (later models)
• Piper PA-28 Cherokee
• Piper PA-32 Cherokee Six
• Grumman American AA-5
• Van's RV series (experimental aircraft)
• Aeronca Champion
• Mooney M20

• O-360-A1A: 180 hp, used in Cessna 172 and Piper PA-28
• O-360-A1D: 180 hp, used in Piper PA-28 and other aircraft
• O-360-A1G6: 180 hp with higher compression ratio
• O-360-C1A: 180 hp, helicopter applications (Bell 47)
• O-360-E1A: 180 hp, used in Mooney M20
• O-360-F1A: 180 hp, used in Grumman American AA-5

• Proven reliability with decades of service history
• Simple design for easier maintenance and repair
• Dual magneto system providing critical redundancy
• Wide availability of parts and technical support
• Versatile application across certified and experimental aircraft