Approximately 315 horsepower.
In 2010, GMC relied on a 5.3-liter V8—often referred to as the Vortec 5300—for many of its full-size trucks and SUVs. The engine was commonly rated at 315 horsepower, producing about 335 lb-ft of torque. Exact numbers can vary slightly by model configuration, fuel system (gasoline or flex-fuel), and whether features like Active Fuel Management (AFM) are in use, but the standard figure for the 2010 5.3L V8 is 315 hp.
GMC models in 2010 that used the 5.3L V8
The 5.3L V8 powered several GMC vehicles in 2010. The following GMC models used this engine and shared the same general horsepower rating:
- GMC Sierra 1500 (various cab configurations and trims)
- GMC Yukon
- GMC Yukon XL
In these models, the engine’s 315 hp rating applied across most configurations, with torque around 335 lb-ft. Real-world results can vary slightly based on drivetrain setup, exhaust, and fuel strategy.
Engine specifications at a glance
For a concise snapshot, here are the core figures associated with the 2010 5.3L V8:
- Horsepower: 315 hp at 5,600 rpm
- Torque: 335 lb-ft at 4,000–4,400 rpm
These values reflect the standard Vortec 5300 configuration used in most 2010 GMC trucks and SUVs. Some trims or markets with AFM or flex-fuel variants can show minor deviations in perceived performance, but the published rating remains 315 hp.
Notes on variations
Active Fuel Management (AFM) and flex-fuel options can influence how the engine behaves in everyday driving, especially under light loads, but do not typically alter the published horsepower figure for the 2010 5.3L V8. For most buyers and enthusiasts, the engine’s headline specification remains 315 hp with about 335 lb-ft of torque.
Summary
The 2010 GMC 5.3-liter V8 delivers about 315 horsepower, paired with roughly 335 lb-ft of torque. It powered popular GMC models such as the Sierra 1500, Yukon, and Yukon XL, offering solid towing and acceleration for the segment. While exact numbers can vary by configuration and equipment, 315 hp is the standard reference point for the 2010 5.3L V8.