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GM TurboMax Engine
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.
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.”
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 only GM engine to wear the TurboMax brand is the turbocharged 2.7L I-4 L3B engine in GM’s 2024 and newer full-size GM trucks. It’s likely, however, that the TurboMax moniker will expand to other engines, such as the L3B in the Chevy Colorado and GMC Canyon, or to the upcoming LK0 engine.
| 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 |
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.
Discussion
Discuss all things TurboMax in our GM forums.
News
Follow GM Authority’s coverage of GM TurboMax engine news.
TurboMax News
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2024 GMC Sierra TurboMax Engine Gets Longer Warranty
40,000 miles longer than previously.
2024 Chevy Silverado TurboMax Engine Gets Longer Warranty
Extended an extra 40,000 miles.
