In short, it depends on the specific vehicle using the 350 cubic-inch V8. For 1997 GM models, the 5.7L (350) engine ranged from about 255 horsepower in trucks and SUVs to 345 horsepower in the Corvette LT1, with mid-range figures in the Camaro/Firebird lineup. Exact numbers vary by model, emissions equipment, and options.
Overview of the 1997 350-cubic-inch V8 lineup
The 1997 model year used several iterations of the 350 small-block across GM’s lineup. The same displacement could be tuned differently to emphasize torque, top-end power, or torque at lower RPMs, depending on whether it appeared in a Corvette, a pickup, or a sports coupe.
Horsepower by model
Below are the most common horsepower figures for the 1997 350 V8 family, noting that exact numbers can vary by configuration and equipment.
- Corvette LT1 5.7L V8: 345 horsepower
- Chevrolet C/K trucks and SUVs with 5.7L V8: about 255 horsepower
- Camaro/Firebird with 5.7L V8 (LT1 variants): around 305 horsepower
Note: Exact horsepower can vary by engine code, emissions package, exhaust setup, and whether the vehicle used a manual or automatic transmission. For precise figures, consult the original window sticker or the vehicle’s VIN-specific documentation.
Additional context
Horsepower is only one part of performance. Torque curves, rpm range, and gearing affect how the engine feels on the road. In 1997, Corvette engines were tuned for higher-end power, while trucks prioritized low-end torque for hauling and reliability.
Summary
The 1997 GM 350 engines delivered a spectrum of horsepower: roughly 255 hp in trucks and SUVs, about 305 hp for Camaro/Firebird LT1 configurations, and up to 345 hp in the Corvette LT1. For an exact figure, verify the vehicle’s documentation or VIN-specific data.