The 2020 GMC Sierra HD will be powered by a new gas-sipping V8 engine underhood. While GMC is not quite ready to share details about its heavy-duty pickup's gas-fed engine, the brand is opening up about the truck’s carryover, diesel-drinking turbocharged 6.6-liter V8 that produces 445 horsepower and 910 pound-feet of torque.
Backed by a new 10-speed automatic transmission, the powertrain is said to muster a tow rating in excess of 30,000 pounds. That’s a major improvement over the current truck, which manages a maximum towing capacity of 23,100 pounds for rear-drive 3500HD dually models using a fifth-wheel or gooseneck hitch.
The 2020 Sierra HD will go on sale by the end of the year. Although GMC did not release pricing for the truck, we expect the new Sierra HD to start at more than $35,000.
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