The 2024 GMC Sierra 2500HD has done just that by pumping the power of its 6.6-liter Duramax turbo-diesel up to 470 horsepower and 975 lb-ft of torque, which gives its Crew Cab configuration a best ...
A larger gasoline engine is optional on the Silverado 2500HD Classic in the form of an 8.1-liter V-8 that generates 330 horsepower. For maximum towing and hauling performance, a Duramax 6.6-liter ...
The GMC Sierra 2500HD is closely mechanically related to the Chevrolet Silverado 2500HD but distinguishes itself as a more upscale truck thanks in part to the availability of the chrome-clad ...
The Sierra 2500HD and 3500HD are the jumbo-shrimp of ... while an available 470-hp Duramax turbo-diesel V-8 with 10-speed automatic transmission is a prerequisite for the Sierra HD's 22,500 ...
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