How much horsepower does and 2003 5.4l have?

The horsepower of a 2003 5.4L engine depends on the vehicle it was in. Ford used the 5.4L in various trucks and SUVs, and the output varied slightly depending on the application and whether it was a Triton V8 or a modular engine.

You'll need to specify the *make and model* of the vehicle (e.g., Ford F-150, Ford Expedition, Lincoln Navigator) to get the exact horsepower rating. Generally, you're looking at a range between 250 and 300 horsepower.