What describes an inboard engine?

An inboard engine is typically described as a four-stroke automotive engine that has been adapted for marine use. This type of engine is integrated into the hull of the boat, which means it is not easily removable like some outboard engines. Inboard engines are designed to be more robust and can handle the demanding conditions of marine environments, while also offering benefits such as better stability and handling due to their placement within the boat.

Inboard engines often use internal cooling systems that are specific to marine applications, and they may be modified for higher torque outputs, which is crucial for propulsion in a watercraft. This adaptation allows for a more powerful and efficient operation compared to standard automotive engines used on land.