Duramax Diesel 6600 V8 Engine Shown

Sorry, but we still do not have official horsepower and torque figures from GM.

The Duramax Diesel 6600 is an all-new, 90-degree V8 with Bosch common-rail direct-injection and an overhead valve (OHV), four-valve-per-cylinder design. It replaces GM's current 6.5-liter turbo diesel and will provide 2001 Silverado and Sierra 2500HD and 3500 Pickup and Chassis-Cab customers with more power, performance, fuel efficiency, reliability and durability.

The Duramax will use the new Allison 1000 Series 5-speed automatic transmission to take full advantage of the horsepower and torque range offered in the engine.

Other highlights include:

Direct Injection: delivers precisely metered amounts of fuel ot the engine to better control combustion and reduce noise and emissions.

Aluminum Cylinder Head: Lightweight aluminum complements the 4 valves per cylinder to allow for higher torque.

The all new Duramax Diesel 6600 V8 will debut on GM Heavy Duty trucks in the 2001 model year.

The Allison 1000 Series transmission is clearly visible and designed to take full advantage of the power and torque curves the Duramax offers.

The Duramax was developed jointly between GM and Isuzu Motors Limited. The engines are to be built at a new factory in Ohio.