What is the hp for a 6.8L V10 engine?

There's no single answer to the horsepower of a 6.8L V10 engine. The horsepower output depends heavily on the specific application and the manufacturer's tuning. A 6.8L V10 in a heavy-duty truck will have different horsepower than one in a high-performance vehicle. You'd need to specify the *make and model* of the vehicle or engine to get a precise horsepower rating.