Performance Powertrains
Silverado Heavy Duty Truck offers two dependable powertrains for performance on demand with the legendary available Duramax 6.6L Turbo-Diesel V8 engine or the powerful 6.6L V8 gas engine.
Duramax 6.6L Turbo-Diesel V8
Maximum diesel strength and capability
- 470 horsepower
- 975 lb.-ft. torque
- 10-speed Allison® automatic transmission
- 36,000 lbs. max available trailering weight
6.6L V8 Gas Engine
Powerful standard performance
- 401 horsepower
- 464 lb.-ft. torque
- 10-speed Allison® automatic transmission
- 19,080 lbs. max available trailering weight