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Rumormill: Next-Gen Chevy Silverado, GMC Sierra To Offer Four Engine Choices, 3 V8 Engines

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.

GM Authority Executive Editor with a passion for business strategy and fast cars.

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Comments

  1. That 4.8 is going to dominate the V6 Ecoboost in EVERY area? And the V8 is going to be naturally aspirated? That will make people think of turbos differently. Those are some great news, GM!

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  2. it’s amazing what a company can do with previous generation technology, good job GM

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  3. That’s great news, but if the 6.2 makes 450hp, and a 4.8 makes 350ish with 420ish lb-ft of torque, I don’t see where the 5.3 would fit in.

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  4. wait what?! the 4.8 will compete with the ecoboost? yeah kevin you’re right I don’t know how gm is going to make the 5.3 relevant in the new engine lineup with the 6.2 producing 450 hp. The other engine is probably either the 3.6 V6 or gm has revamped the 4.3(as crazy as it sounds). Can not wait for the unveil!

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  5. There is no 4.8

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  6. My first guess is that they mystery engine is a V6, but why make that a surprise? Could it be a real surprise – a diesel?

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  7. Maybe the 4.8L is a Duramax Twin Turbo.

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    1. that would definately explain the torque and mpg comparision to the ecoboost, and would leave a place for the 5.3 gas

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  8. Id be suprised if GM still uses the 4.8 liter V8 and this seems a little confusing. There is Forsure a base 6 cylinder as well

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  9. Hoping for a twin turbo small displacement V8 or a big bore 7.0L and I’ll be the first to order.

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  10. …after all, there’s got to be a C7 Z06 engine we haven’t seen yet.

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  11. Correct me if I am wrong, but I think these are the LD engines. The HD’s will be getting different versions, not to mention a Duramax.

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  12. Not convince GM will drop the 3.6 V6 in as the base engine in work truck versions, even if it can beat the Ford 3.7NA engine. Never been a fan of the 4.8, preferring the 5.3 on mpg grounds. So if the 4.8 remains and beats the ford on mpg and torque then it has to in my eyes be a diesel not a gas engine.
    Now will Ford respond with its 5.0 V8 diesel sold overseas then we have a new battle on our hands…..

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  13. That sounds good in all, just kind of hard to believe about the 4.8. Currently the engine produces right around 300 horsepower.. I understand it is an all new engine, but to produce that much more horsepower and torque with an N/A engine is pretty big. But if that is the case, I can see the 5.3 being up there or surpassing the 5.7 Hemi… and have the 6.2 right around 435-450..

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  14. I’ll believe it when i see it, remember it is a rumor you’al.

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    1. Yupp, it sure is a rumor. Nothing concrete yet. 🙂

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