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Leak reveals GM's 2017 heavy duty diesel trucks to get 910 lb-ft of torque [UPDATE]

UPDATE: Chevrolet officially announced specs for the 2017 Silverado HD and the rumors were true. The truck's new Duramax 6.6-liter turbo-diesel V8 puts out 445 horsepower and 910 pound-feet of torque. Chevrolet says the new motor produces 19 percent more torque and 12 percent more horsepower, while producing 35 percent fewer emissions. Overall, the new engine is a big improvement over the current motor, which generates 397 horsepower and 765 pound-feet of torque. According to Truck Trend, GM's newest heavy duty pickup trucks will pick up quite a bit more power and torque. The publication spotted a recent GM Powertrain ordering catalog that had the engine specs for the 2017 model year and managed to get some screenshots before the catalog was taken down, and they can be viewed here. The screenshots revealed that the 6.6-liter turbodiesel V8 powering the Silverado and Sierra heavy duty models will boast 445 horsepower and 910 lb-ft of torque. This is a substantial gain over the current models' 397 horsepower and 765 lb-ft of torque, and as Truck Trend points out, it exceeds the Ford Super Duty line's horsepower output of 440, but comes short of the 925 lb-ft rating. Truck Trend credits part of this output gain to the new intake system GM will introduce on the 2017 heavy duties. The intake gets 60 percent of its air from a scoop on the hood, with the other 40 percent coming from behind one of the front fenders. GM doesn't reveal horsepower figures in the press release about the scoop, but it does say the cooler air helps with maintaining the engine's output, and that the scoop does produce a ram-air affect, providing more air at speed. As we know, more air plus more fuel equals more power, but there's likely more to the power increase in this engine than only the intake. Related Video: News Source: Truck Trend via MSN Chevrolet GM GMC Truck Diesel Vehicles

GMC reveals updated 2016 Sierra

It was just the other day that Chevy revealed the face of the new 2016 Silverado. And as might have been expected, sister brand GMC has followed up by unveiling its version in the facelifted 2016 Sierra pickup – just two and a half years since the current all-new model was rolled out. Though details released thus far remain few and far between, GMC has revealed more images of the new Sierra – in SLT, Denali and All Terrain trim levels – than Chevy did of the updated Silverado. It's got new headlights, fog lamps, and C-shaped daytime running lights and taillights, all using LED elements. It's arguably a more muscular look than the Chevy version, and with more chrome than the toned-down Silverado. That is, at least, in SLT and Denali trims. The All Terrain version looks more in line with the similarly off-road-focused Silverado Z71 and its color-keyed treatment. The changes ought to help GMC keep up the momentum that has seen its sales rise year-over-year every month over the past twelve. The interior shots indicate that the new Sierra will incorporate Apple CarPlay like GM is installing in so many models across its various brand ranges. But we'll have to wait a little while longer for all the details. Related Video: 2016 GMC Sierra Unveiled 2015-07-15 DETROIT -- GMC's best-selling truck has great momentum coming off its best June since 2006 and 12 consecutive months of year-over-year sales gains. With exterior styling as its top reason for purchase, the new truck adds key design elements: LED "C-shaped" signature daytime running lights and LED headlights; new front fascia and grilles for each trim level; new LED fog lamps; new bumpers; and new "C-shaped" LED taillights. The new Sierra will be available in the fourth quarter of this year, with additional details and information on the new model released in the coming months.

2015 GMC Sierra Elevation Edition goes dark, looks good

Forget about the so-called sporty Chevrolet Silverado Rally Edition. If you want a General Motors pickup with some added style, this one looks like a more cohesive, well-done package to our eyes (though it's also not "sporty," despite GM using that term over and over again). It's called the GMC Sierra Elevation Edition, and it hits dealerships later this year.
For its more stylish truck, GMC has fitted the 2015 Sierra Double Cab with a body-colored grille surround, door handles, mirror caps, side moldings and bumpers. The truck also rides on black 20-inch aluminum wheels.
The Elevation Edition, which GMC contends qualifies as a sport truck, comes standard with the Sierra's 285-horsepower, 4.3-liter V6, though buyers can opt for the more powerful 5.3-liter V8 with 355 hp. Other standard goodies include OnStar with 4G LTE connectivity and Bluetooth, all housed in the 4.2-inch Intellilink color display.