What is the horsepower of a 1997 chevy 454?

The horsepower of a 1997 Chevy 454 depends on the specific model and trim level of the vehicle it was in. There wasn't a single horsepower rating for all 454s that year. The horsepower ranged from approximately 230 hp to 290 hp, depending on the application (e.g., truck, SUV, etc.) and whether it was a carbureted or fuel-injected engine. You'll need to find the specific vehicle's information (like the RPO code from the glovebox sticker) to get the exact horsepower.