GMC has released horsepower and torque ratings for the new high-performance EcoTec3 6.2-liter V-8 available in the 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 as part of the 2014 GMC Sierra Denali option package.
The premium engine is reported to produce an estimated 420 horsepower and 450 pounds-feet of torque; final numbers from the Society of Automotive Engineers are expected later this year. Additionally, it looks like the new Sierra will offer a maximum trailering capacity of 12,000 pounds with the 6.2-liter V-8. We're guessing that will only be available when equipped with the late-availability Max Trailering Package that requires a heavier-duty rear axle and 3.73:1 ring and pinion.
The new Sierra Denali trim will be the most premium package offered on the new platform with unique grille, headlight and bumper treatments as well as numerous Denali-specific interior accents and styling details.
"The 2014 Sierra Denali has a combination of performance, capability and luxury that no other pickup can match," said Tony DiSalle, vice president of GMC marketing. "It leaves no boxes unchecked for those owners looking for the ultimate expression of 'Professional Grade.' "
Pricing has not been announced. To read the press release, .