The volume of an engine, measured in cubic centimeters (cc), is not directly related to its horsepower (hp) output. The horsepower of an engine depends on various factors such as the design, efficiency, fuel type, and other engineering considerations.
To determine the horsepower of an engine, you would need additional information such as the specific engine model, its intended use, and any other relevant specifications provided by the manufacturer. Knowing the engine's displacement, in this case, 679cc, is not sufficient to determine its horsepower accurately.
If you have information about a specific engine model, I can help you find the horsepower associated with it.