The Lycoming IO-360 is a family of four-cylinder, horizontally opposed, air-cooled, fuel-injected aircraft engines. It is a popular choice for general aviation aircraft due to its reliability, efficiency, and performance.

• Engine Type: Horizontally opposed, four-cylinder, four-stroke, air-cooled engine. Fuel-injected (as opposed to carbureted models like the O-360).
• Displacement: 361 cubic inches (5.9 liters).
• Power Output: Typically produces 180-200 horsepower at 2,700 RPM, depending on the specific variant.
• Fuel System: Fuel-injected, which provides better fuel efficiency, smoother operation, and improved performance at higher altitudes.
• Weight: Dry weight is approximately 258-280 pounds (117-127 kg), depending on the model and accessories.
• Applications: Commonly used in high-performance light aircraft, including the Cirrus SR20, Mooney M20, and Piper PA-28R Arrow.

• IO-360-A1A: 180 HP. Used in aircraft like the Piper PA-28R Arrow.
• IO-360-B1A: 180 HP. Used in the Mooney M20 series.
• IO-360-C1A: 180 HP. Used in the Cirrus SR20.
• IO-360-M1A: 200 HP. High-performance variant used in experimental and homebuilt aircraft.

• Compression Ratio: 8.5:1 (standard models)
• Fuel Type: Aviation gasoline (100LL or equivalent)
• Oil Capacity: Approximately 8 quarts (7.6 liters)
• Cooling System: Air-cooled with baffling for efficient heat dissipation

• Fuel Injection: Better efficiency and performance, especially at higher altitudes. Reduces risk of carburetor icing.
• Reliability: Known for durability and long service life.
• Smooth Operation: Ensures better throttle response.
• Versatility: Suitable for a wide range of aircraft.

• Designed for ease of maintenance with readily available parts
• Regular maintenance includes oil changes, spark plug replacement, and fuel injection system inspection
• Time Between Overhaul (TBO): Typically 2,000 hours or 12 years

• Cirrus SR20 (IO-360-C1A)
• Mooney M20 series (IO-360-A1A, IO-360-B1A)
• Piper PA-28R Arrow (IO-360-A1A)
• Diamond DA40 (10-360-M1A)
• Cessna 172 (10-360-L2A)
• Experimental and homebuilt aircraft (e.g., Van's RV series)