As General Motors prepares to unveil and subsequently launch its all-new line of full-size trucks, including the Chevy Silverado and GMC Sierra, truck enthusiasts have been anticipating that the new vehicles will offer a new turbo-charged engine to compete with Ford’s EcoBoost mill. However, a source citing GM’s plans discussed at a recent dealer conference told GM Authority that the trucks will be offered with four engine choices, three of which will be packing eight cylinders.
The three V8s will include a 4.8 liter, 5.3 liter, and 6.2 liter V8s, while the fourth engine was not specified. However, the 4.8 liter V8, which we assume to be part of the new generation of GM’s small block mill, is reported to make more horsepower and torque, as well as achieve higher fuel economy than Ford’s 3.5 liter V6 EcoBoost. Ford’s 3.5 liter EcoBoost is rated at 365 horsepower and 420 lb.-ft. of torque in the F-150 while achieving 16 MPG city and 22 MPG highway. Needless to say, it’s a tall order, especially in the torque department.
The fourth engine slated for the next-gen Silverado and Sierra is currently unknown. However, we do know that a twin-turbo V6 unit is destined for some future Cadillac models, and sounds like something that would be feasible in the engine bay of the trucks as well.
Earlier this week, General Motors unveiled its all-new small block engine that will first find its way into the next-generation C7 Corvette. Called LT1, the 6.2 liter engine makes 450 horsepower and torque.