2027 Chevrolet Silverado 1500 New V8 Engines: 5.7L vs. 6.6L
Silverado 1500 introduces two all new V8 engines
The next generation 2027 Chevrolet Silverado 1500 introduces two all new V8 engines, a 5.7L V8 and a 6.6L V8. Chevrolet says these sixth generation V8 engines have been reimagined from the ground up, are American assembled and deliver improved power and torque. They join an upgraded TurboMax engine and the Duramax 3.0L Turbo Diesel to create a four engine lineup for the redesigned Silverado 1500.
Chevrolet has not yet published final horsepower, torque, towing or pricing figures for the new 5.7L and 6.6L V8 engines. The 2027 Silverado is a preproduction vehicle scheduled to become available in late 2026, with additional specifications, pricing and ordering information to be announced.
What Are the New V8 Engines in the 2027 Chevrolet Silverado 1500?
The two new V8 choices are a next generation 5.7L V8 and 6.6L V8. These are not simply engines carried over unchanged from the previous Silverado. Chevrolet describes both as reimagined from the ground up and identifies them as sixth generation V8 engines.
| 2027 Silverado Engine | What Chevrolet Has Confirmed |
|---|---|
| 5.7L V8 | All new sixth generation V8 with improved power and torque |
| 6.6L V8 | All new sixth generation V8 with improved power and torque |
| TurboMax | Upgraded for the next generation Silverado |
| Duramax 3.0L Turbo Diesel | Available diesel powertrain in the four engine lineup |
The arrival of the new V8 engines is one of the defining changes separating the next generation 2027 Silverado from the previous truck.
What Is New About the 2027 Silverado 5.7L V8?
The 5.7L V8 is an all new engine developed for the next generation Silverado. Chevrolet says the new V8 has been reimagined from the ground up as part of the company's sixth generation of V8 engines.
Chevrolet also says the new V8 powertrains provide improved power and torque. However, Chevrolet has not yet released the final horsepower and torque ratings for the 5.7L V8 on its consumer information page for the 2027 Silverado.
That distinction is important for buyers researching the truck before it arrives. Specifications from an older Chevrolet V8 or another GM vehicle should not be assumed to apply to the new 2027 Silverado 5.7L V8.
What Is New About the 2027 Silverado 6.6L V8?
The 6.6L V8 is the second all new V8 announced for the 2027 Silverado 1500. Like the 5.7L, Chevrolet identifies the 6.6L as a next generation, American assembled V8 that has been reimagined from the ground up.
The 6.6L displacement makes this an especially notable announcement for Silverado 1500 shoppers. Chevrolet says its new V8 engines help create the most capable and refined Silverado 1500 powertrain lineup the company has offered.
Final horsepower, torque and configuration information for the 6.6L V8 has not yet been released. Those specifications should become particularly important once shoppers can determine which 2027 Silverado models and configurations can be paired with the larger V8.
2027 Silverado 5.7L V8 vs. 6.6L V8: What Is the Difference?
The primary confirmed difference is displacement, with Chevrolet announcing one V8 at 5.7 liters and the other at 6.6 liters. Chevrolet has not yet provided enough final production specifications to make a complete horsepower, torque, towing or fuel economy comparison between the two engines.
| Feature | 5.7L V8 | 6.6L V8 |
|---|---|---|
| Engine Generation | Sixth generation | Sixth generation |
| Displacement | 5.7L | 6.6L |
| All New for 2027 | Yes | Yes |
| American Assembled | Yes | Yes |
| Improved Power and Torque | Chevrolet confirmed | Chevrolet confirmed |
| Final Horsepower Published | Not yet announced | Not yet announced |
| Final Torque Published | Not yet announced | Not yet announced |
Until Chevrolet publishes the complete specifications, shoppers should not assume that engine displacement alone determines which V8 will be right for them. Model availability, configuration, capability and intended use will all matter.
Why Is Chevrolet Introducing New V8 Engines?
The new V8 engines are part of a complete next generation redesign of the Silverado 1500. Chevrolet is updating the truck's powertrains at the same time it is introducing a new exterior, redesigned interior and major technology upgrades.
The V8 also has a long history within Chevrolet. Chevrolet introduced its first V8 in 1955. More than 70 years later, the company is using the redesigned Silverado to introduce its sixth generation 5.7L and 6.6L V8 engines.
Will the 2027 Silverado Still Have a TurboMax Engine?
Yes. An upgraded TurboMax engine is part of the 2027 Silverado 1500 four engine lineup. That gives shoppers an alternative to the new V8 engines without leaving the Silverado lineup.
The presence of TurboMax, two V8 engines and a diesel means buyers will ultimately be able to evaluate four different powertrain approaches when configuring the new truck.
Will the 2027 Silverado Still Offer a Duramax Diesel?
Yes. Chevrolet has confirmed the Duramax 3.0L Turbo Diesel for the next generation Silverado 1500. It will be offered alongside the upgraded TurboMax and new 5.7L and 6.6L V8 engines.
This gives diesel truck shoppers a reason to include the new Silverado in their research even if they are not specifically looking for one of the newly announced V8 engines.
How Much Horsepower Will the 2027 Silverado 6.6L V8 Have?
Chevrolet has not yet published the final horsepower rating for the 2027 Silverado 1500 6.6L V8. Chevrolet has confirmed improved power and torque for its new V8 engines, but specific production output figures have not yet been released.
The same applies to the new 5.7L V8. Until Chevrolet releases final specifications, horsepower and torque figures found elsewhere should not be treated as confirmed 2027 Silverado 1500 specifications.
How Much Can the 2027 Silverado 6.6L V8 Tow?
Chevrolet has not yet published final towing specifications for the new 6.6L V8 Silverado 1500. Towing capability can also depend on the truck's model, drivetrain, cab, bed, axle ratio and other equipment, making the final configuration information important for buyers who tow regularly.
For Pennsylvania truck owners who tow equipment, trailers, recreational vehicles or other loads, comparing the final towing specifications of the 5.7L V8, 6.6L V8, TurboMax and Duramax will be an important part of choosing a 2027 Silverado.
Towing Disclaimer: Maximum towing capability requires proper vehicle configuration and equipment. Towing capacity varies by model, drivetrain and equipment. See Chevrolet's official towing information and owner's documentation for requirements and limitations.
Which 2027 Silverado V8 Should You Choose?
The right choice between the 5.7L and 6.6L V8 will depend on final specifications, configuration availability and how you plan to use your Silverado. Chevrolet has confirmed both engines, but there is not yet enough final production information to declare one engine the right choice for every truck buyer.
A shopper focused primarily on everyday driving may have different priorities from someone who regularly uses a Silverado for demanding work or trailering. Once Chevrolet releases horsepower, torque, towing and model availability, buyers will be able to make a much more detailed comparison.
What Else Is New on the 2027 Chevrolet Silverado 1500?
The new V8 engines are part of a much larger Silverado redesign for 2027. Chevrolet says the next generation truck has been completely redesigned inside and out.
The new exterior has a bolder, more planted stance and a stronger, more expressive grille. Chevrolet has also announced signature LED headlamps and taillamps, dual exhaust and new tailgate detailing.
Inside, the redesigned Silverado can offer more than 60 inches of combined available screen space. The new cabin includes a 16.3 inch center screen, a 12.2 inch Driver Information Center and an available 11.5 inch front passenger screen.
Available Super Cruise with Trailering, a panoramic sunroof and a new available Multi Flex Center Console further distinguish the next generation truck.
Which 2027 Chevrolet Silverado Models Are Coming?
Chevrolet has announced seven models for the next generation 2027 Silverado.
- ZR2
- High Country
- Trail Boss
- Silverado
- Custom Trail Boss
- Custom
- WT
Chevrolet has not yet published the complete engine availability matrix for every model. Buyers interested specifically in the 5.7L or 6.6L V8 should confirm final configuration availability when ordering information is released.
When Can You Buy the 2027 Chevrolet Silverado 1500?
Chevrolet says the next generation 2027 Silverado 1500 will be available in late 2026. Ordering and pricing information will be announced as Chevrolet moves closer to the truck's arrival.
Drivers who need a Chevrolet truck sooner can shop new Chevrolet inventory at Memorial Highway Chevrolet of Windber and compare the Silverado trucks currently available.
2027 Chevrolet Silverado 1500 in Windber, Pennsylvania
Memorial Highway Chevrolet of Windber serves Chevrolet truck shoppers in Windber and drivers from Bedford, Portage, Ebensburg, Claysburg and surrounding Pennsylvania communities. As Chevrolet releases additional information about the next generation Silverado, shoppers will be able to compare the new engines, models, technology and configurations before deciding which truck fits their needs.
If you are considering a Silverado now, view current new Chevrolet specials at Memorial Highway Chevrolet of Windber for current purchase and lease opportunities.
2027 Chevrolet Silverado 1500 V8 Engine FAQs
What new engines are coming to the 2027 Silverado 1500?
Chevrolet has announced two all new V8 engines, a 5.7L V8 and a 6.6L V8. The four engine lineup also includes an upgraded TurboMax and Duramax 3.0L Turbo Diesel.
Is the 2027 Silverado getting a new 5.7L V8?
Yes. Chevrolet has confirmed an all new, sixth generation 5.7L V8 for the next generation 2027 Silverado.
Is the 2027 Silverado 1500 getting a 6.6L V8?
Yes. An all new 6.6L V8 is one of the two next generation V8 engines Chevrolet has announced for the 2027 Silverado 1500.
How much horsepower does the 2027 Silverado 6.6L V8 make?
Chevrolet has not yet published the final horsepower rating. Chevrolet has confirmed that the new V8 engines provide improved power and torque.
What is the difference between the 5.7L and 6.6L Silverado V8 engines?
The primary specification Chevrolet has confirmed so far is displacement. Both are all new sixth generation V8 engines, but final horsepower, torque and configuration details have not yet been published.
Does the 2027 Silverado still offer the 3.0L Duramax diesel?
Yes. The Duramax 3.0L Turbo Diesel is part of Chevrolet's announced four engine lineup for the next generation Silverado 1500.
Is the TurboMax available on the 2027 Silverado?
Yes. Chevrolet has announced an upgraded TurboMax engine for the 2027 Silverado 1500.
When will the 2027 Chevrolet Silverado 1500 be available?
Chevrolet says the next generation Silverado will be available in late 2026, with additional ordering and pricing information to be announced.
Availability Disclaimer: The 2027 Chevrolet Silverado 1500 is a preproduction vehicle. Actual production models, specifications, equipment and availability may vary. Chevrolet has not yet announced final horsepower, torque, towing specifications or pricing for the new V8 engines. Contact Memorial Highway Chevrolet of Windber for current information as final production details become available.