Tackling home improvement tasks is what the standard 4.3-liter V6 engine is designed to do. With an impressive 285 horsepower and 305 lb-ft of torque, the V6 engine can tow up to 7,600 lbs. with the right equipment. Drivers with the need for more power will find the 5.3-liter V8 engine’s 355 horsepower, 383 lb-ft of torque, and 11,100-lbs. towing capacity more their style. Those who require plenty of power will enjoy the roar of the 6.2-liter V8 engine. With an output of 420 horsepower and 460 lb-ft of torque, the V8 engine can tow up to 12,500 lbs. when properly equipped.