We’ve had quite a few looks at General Motors’ upcoming heavy-duty trucks. Recently, the 2017 Chevrolet Silverado HD and 2017 GMC Sierra HD have been spied testing multiple times with light camouflage upfront.
Speculation has General Motors gunning for 900 lb-ft of torque in the 2017 Sierra and Silverado. While we may not know that for some time, we do have another look at the 2017 GMC Sierra 3500, although this time we have it in cutaway form.
One thing has been consistent through the spy shots we’ve seen: each prototype wears a familiar raised scoop on the hood. This points to greater air flow into the engine via this new air duct, which allows us to deduce more power is headed to the Duramax diesel engine. Currently, GM’s 6.6-liter Duramax diesel sits at 765 lb-ft of torque, but its domestic competitors outdo the engine by over 100 lb-ft of torque.
The dually was spotted testing in the Rocky Mountains by the TFLtruck, who reports the turbo-diesel was “very quiet” upon acceleration. They even recorded as much of the truck as they could in a brief video, which you can have a look at right down below.
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