GM TurboMax engines is the brand name used by General Motors for the high output version of its turbocharged 2.7L L3B inline four cylinder gasoline engine. It’s possible that the TurboMax brand will subsequently expand to other turbocharged gasoline engines.
GM 2.7L I-4 L3B turbocharged gasoline engine
Announcement
On March 29th, 2023, GM officially announced that the turbocharged L3B engine in the 2024 Chevrolet Silverado 1500 will wear the TurboMax moniker. The same was subsequently confirmed for the 2024 GMC Sierra 1500.
TurboMax Engines
Currently, the TurboMax moniker applies only to the high-output version of the turbocharged 2.7L I-4 L3B engine, which was first introduced in the 2023 and newer Chevy Colorado and GMC Canyon. Incidentally, the TurboMax brand did not make it to these vehicles until the 2024 model year, and the first vehicles to wear the TurboMax brand were GM’s 2024 model year full-size half-ton pickup trucks – the Chevy Silverado 1500 and GMC Canyon 1500.
| Engine | Vehicle | Power (hp / kW) @ RPM | Torque (lb-ft / Nm) @ RPM | |
|---|---|---|---|---|
| 2.7L L3B I-4 | 2024 Chevrolet Silverado 1500 | 310 / 231 @ 5600 | 430 / 569 @ 1500-4000 | |
| 2.7L L3B I-4 | 2024 GMC Sierra 1500 | 310 / 231 @ 5600 | 430 / 569 @ 1500-4000 | |
| 2.7L L3B I-4 | 2023 – present | Chevrolet Colorado | 310 / 231 @ 5600 | 430 / 583 @ 3000 |
| 2.7L L3B I-4 | 2023 – present | GMC Canyon | 310 / 231 @ 5600 | 430 / 583 @ 3000 |
Overarching Brand
It’s worth noting that the TurboMax name is similar in form to Duramax, GM’s brand for turbo-diesel engines. As such, it’s possible that GM will also use the TurboMax brand for other turbo-charged GM engines.
Trademark Filing
On January 24th, 2023, GM Authority was first to report that General Motors filed a trademark application with the United States Patent and Trademark Office (USPTO) for the term TurboMax. The filing is assigned serial number 97766047 and carries a Goods and Services description of “Engines for motor land vehicles.”
Discussion
Discuss all things TurboMax in our GM forums.
News
Follow GM Authority’s coverage of GM TurboMax engine news.
TurboMax News
2025 GMC Canyon AT4X Becomes An Option Package
AT4 and AT4X are no longer separate trims.
Read More »
2025 Chevy Colorado Drops Base 2.7L Turbo L2R Engine
The TurboMax is the new standard engine.
Read More »
