Chevrolet took to Texas Motor Speedway to showcase its official power ratings for the new 6.6-liter L5P Duramax turbo-diesel V8 engine, slated for not only the 2017 Chevrolet Silverado HD, but also the 2017 GMC Sierra HD.
The engine produces a stout 445 hp and 910 lb-ft of torque, and a Guinness World Record for World’s Largest Flag Pulled by a Moving Vehicle seems like just the way to show those figures off. Because ‘Murica.
Previously, the figures for both heavy duty trucks were leaked in General Motors’ 2017 global propulsion product guide posted on the GM Powertrain website. But, with their official status, Chevrolet wasn’t coy on talking about the truck’s capability.
Low-end torque still arrives with a gusto, with 90-percent ready and willing at 1,550 RPM. The engine sustains the torque through 2,850 RPM, making the 2017 Silverado HD confident in towing even at low speeds.
The 6.6-liter L5P Duramax turbo-diesel engine receives a redesigned camshaft profile, improved cylinder head design and a new electronically controlled, variable-vane turbocharger. Each of these improvements let the 2017 Silverado HD produce more power at lower cylinder pressure, and produce fewer emissions in the process.
It’s all complimented by the 2017 Silverado HD’s new intake system, complete with a fully functional hood scoop to route cool, dry air, which maximizes capability when the 6.6-liter Duramax is under load.
Chevrolet says these improvements help real-world towing scenarios. The reality is 89-percent of customers tow less than 25,000 pounds in their HD trucks. Therefore, customers will see the most improvement in their day-to-day tasks. But, when the time comes, the 2017 Silverado HD will have no issues towing 23,000 pounds in the toughest of conditions.
The revised capability of the 2017 Chevrolet Silverado HD will arrive at dealers in early 2017.