Generally, a 150cc engine can produce around 10 to 15 horsepower, but it can vary depending on the specific engine specifications and manufacturer. Some high-performance 150cc engines can produce up to 20 horsepower or even more.
To accurately determine the horsepower of a particular 150cc engine, it is best to refer to the manufacturer's specifications or consult with a knowledgeable mechanic or automotive expert. They can provide you with the exact horsepower rating for the specific engine model.