How much horsepower does a 3500 Silverado have?
The Silverado 3500HD’s horsepower depends on the engine you choose—401 hp with the gasoline 6.6L V8, or 445 hp with the 6.6L Duramax turbo-diesel.
For heavy-duty trucks, horsepower is only part of the equation; torque, gearing, and transmission also shape performance and towing capability. Chevrolet’s Silverado 3500HD can be configured with both engines, and horsepower figures are published by GM for each engine and model year. Here’s a concise guide to the current horsepower figures for each engine option.
Engine options
Gasoline 6.6L V8
The standard gas engine in many Silverado 3500HD configurations is a 6.6-liter V8 that delivers 401 horsepower, with typical torque around 464 lb-ft. This engine is paired with a heavy-duty automatic transmission and is favored for straightforward performance and reliability.
Duramax 6.6L Turbo-Diesel
The diesel option is the 6.6-liter Duramax turbo-diesel, rated at 445 horsepower in current builds, with torque around 910 lb-ft. This engine is renowned for high torque and sustained pulling power, making it a common choice for heavy towing and long-haul work.
Below is a quick summary of the peak horsepower figures by engine option for the Silverado 3500HD. These numbers reflect typical current-build specifications, but exact figures can vary by model year and market.
- Gasoline 6.6L V8: 401 horsepower
- Duramax 6.6L Turbo-Diesel: 445 horsepower
These are peak horsepower figures for the two available engines. Always verify the exact horsepower on your vehicle’s window sticker or GM’s official documentation for the precise build you’re considering.
Summary
In summary, the Silverado 3500’s horsepower is engine-dependent: 401 hp with the gasoline 6.6L V8, or 445 hp with the Duramax 6.6L turbo-diesel. For accurate numbers on a specific truck, consult the model year brochure or the vehicle’s window sticker.
