What is the horsepower rating of the Lycoming 0-360 engine?

The Lycoming O-360 engine is commonly rated at 180 horsepower. This engine is a four-cylinder, air-cooled, horizontally opposed engine widely used in general aviation aircraft. The 180-horsepower rating reflects its capability to deliver a good balance of power and efficiency for various light aircraft, enabling them to perform well in both takeoff and climb phases. This rating is particularly important for pilots and aircraft operators to understand, as it helps in assessing the aircraft's performance characteristics, such as climb rate and maximum takeoff weight.

The other horsepower ratings provided, while they may correspond to different engine models or configurations, do not apply to the standard O-360 engine designation, making 180 the correct and widely recognized rating for this specific engine type.