Duramax Diesel 6600 V8 Engine Horsepower and Torque
- With the Allison five-speed automatic transmission:
- 310 horsepower @ 3000 rpm.
- 590 lb.-ft. of torque @ 1600 rpm.
Duramax Diesel Engine Features
- More available torque than Ford Super Duty.
- A deep-skirt cast-iron block with induction-hardened cylinder bores and fracture-split connecting rods help increase durability.
- Common rail fuel injection, developed by Bosch, is a direct-injection system that utilizes advanced electronics and pilot injection to optimize fuel delivery and help reduce emissions and combustion noise.
- A variable-geometry turbocharger located in the valley between the cylinder heads for a compact design and features an air-to-air intercooler.
- A durable gear-driven water pump helps maximize coolant flow.
- The oil cooler is integral to the engine block and keeps the oil temperatures more consistent over the operating range.
- Cast-aluminum cylinder heads feature sintered-steel valve-seat inserts and a four-valve design to help reduce emissions and maximize power.