The 6600 will eventually be built in three different configurations. During the introductory model year, this new diesel engine will be built only as a 300 horsepower version for the Silverado/Sierra trucks. Two lower horsepower rated versions are rumored to be available for the SUV, Van and utility market in later model years.

2001 Model Year Specifications:

• Engine Description: 90-degree V-8
• Displacement: 6.6L
• Bore and Stroke: 103 mm x 99 mm
• Compression Ratio: 17.5:1
• Dry Weight, less clutch: 835 lb
• SAE Net Horsepower: 300 HP @ 3,100 rpm
• SAE Net Torque: 520 lb-ft @ 1,800 rpm
• Induction system: Turbocharged & Charge air cooled
• Boost Pressure: 18 psi @ 1,800 rpm

• Cylinder Block Material: Induction hardened Gray Iron Cast
• Cylinder Head Material: Aluminum w/ 6 bolts per cylinder
• Valve Arrangement: 4-valves per cylinder
• Valve timing: Gear driven timing set, single cam
• Fuel Injection: Bosch High Pressure Common Rail Direct Unit Injection
• Oil Capacity: 9.8L w/filter
• Oil Cooler: Internal, Unitized plate construction
• Exhaust System: 3.5" mandrel bent, no catalytic converter

Designed-in "Best in Class" Benefits:

1. Durability
2. Torque Levels
3. Power Levels
4. Fuel Economy
5. Lowest NVH levels (Noise)
6. Low Overall Cost of Ownership
7. Designed for Serviceability

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