How much horsepower does a 1997 Chevrolet 5.7 liter motor have?

The horsepower of a 1997 Chevrolet 5.7L engine varied depending on the specific vehicle and trim level it was installed in. There wasn't one single horsepower rating. You'd need to specify the vehicle (e.g., Silverado, Tahoe, Suburban, Corvette, etc.) to get a more precise answer. However, the range was generally between 250 and 280 horsepower.