Vortec 6.0L V8 Engine
Vortec 6.0L V8 engine features:
- Thundering 353 hp @ 5400 rpm (312 hp @ 4400 rpm in 3500HD Big Dooley models)
- Class-leading standard heavy-duty horsepower in 2500HD and 3500HD Single Rear-Wheel models(1)
- 373 lb.-ft. of torque @ 4400 rpm
- High-speed air movement deep inside the combustion chamber, which generates an ideal fuel-to-air mixture
- Variable Valve Timing (VVT) technology that optimizes combustion, enhances low-end torque and high-end power, promotes efficiency, and helps lower emissions
- A cast-iron crankshaft with undercut and rolled fillets
- A thermoplastic composite intake manifold that helps keep the air intake cool, and equal-length runners that feature smooth interior passages to promote high-speed airflow to each cylinder
- Electronic Throttle Control that provides outstanding throttle response, greater reliability and improved efficiency
- Hydraulic engine mounts for improved vibration isolation
- A faster, smarter Engine Control Module with more memory that better synchronizes the multitude of engine operations that occur every split second
- A coil-near-plug ignition system for a precise delivery of high-energy spark
1 Based on 2007 GM Large Pickup segment and latest available competitive information. Excludes other GM vehicles.