* Manufacturer: GM, Chrysler, and Ford all used 5.7L V8s during this period, and each tuned them differently.
* Year: Even within a single manufacturer and model, horsepower could change year to year due to emissions regulations and other engineering updates.
* Engine Code: Specific engine codes (like the GM LT1, or various small-block Chevy codes) indicated variations in internal components impacting horsepower.
To find the stock horsepower for a specific 5.7L V8, you need to specify:
* The make and model of the vehicle. (e.g., 1995 Chevrolet Corvette, 1998 Dodge Ram 1500)
* The specific engine code (if known).
Once you provide this information, you can find the factory horsepower rating in owner's manuals, repair manuals, or online automotive databases.