The typical horsepower for a 1997 Chevy 1500 with the 5.7-liter V8 is about 255 horsepower (SAE net). This figure appeared across most 1997 C/K1500 pickups equipped with the 350 V8, though minor variations could exist due to emissions equipment and the exact trim. This article outlines the standard rating and what might affect it.
Power rating and what it means
In the 1997 model year, Chevrolet used the 5.7L (350 cid) V8 in two main configurations for full-size pickups: a throttle-body injection (TBI) version with the older design and, in some late-1990s builds, early multi-point injection variants. The official SAE net horsepower for the typical 5.7L was 255 hp, with torque around 330 lb-ft. This rating reflects drivetrain losses and the emission controls of the era.
To give a quick snapshot, here are the core facts:
- Engine: 5.7 L (350 cid) V8, commonly coded L31
- Horsepower: ~255 hp (SAE net)
- Torque: ~330 lb-ft
- Fuel delivery: Throttle Body Injection (TBI) in older designs; some 1997 models used early multi-point injection variants depending on emission packages
- Applications: 1997 Chevrolet C/K1500 pickups, Suburban, and Tahoe with the 5.7 L
Note: The exact rating can vary slightly by production date, emission controls, and whether the truck was in a heavy-duty vs. standard cab/bodystyle. Always verify the data plate on the specific vehicle for the precise rating.
Why some listings differ
Automotive databases and owner guides sometimes show alternate numbers (occasionally listing around 260 hp) depending on the source and whether they reference gross vs. net horsepower. For 1997 GM trucks, the SAE net rating of 255 hp is the standard figure used by manufacturers and most manuals.
Bottom line: The standard rating for the 1997 5.7L-equipped 1500 is 255 horsepower and about 330 lb-ft of torque, with minor variations possible by emissions package and model configuration.
Summary
In short, the 1997 Chevy 1500’s 5.7-liter V8 typically produced 255 horsepower with approximately 330 pound-feet of torque, reflecting SAE net ratings of the era. For the exact figure on a specific vehicle, check the glovebox data label or factory window sticker.