There's no single answer to how many horsepower a 5.3L V8 engine has. The horsepower output varies significantly depending on the year of manufacture, the specific vehicle model it's in, and any modifications that have been made. A 5.3L V8 from a 2003 Chevy Silverado will have considerably less horsepower than a 5.3L V8 from a 2023 GMC Yukon, for example.
To find the horsepower for a specific 5.3L V8 engine, you need to know the year, make, and model of the vehicle it's in. Then you can look up its specifications online (e.g., in a vehicle specifications database or owner's manual).
