Where did Chevy find more power for the Duramax diesel engine?
You’d be wrong if you thought Chevy was turning away from the Duramax diesel engine in anything less than the Silverado 2500HD. While the midsize class goes diesel, the Chevy Silverado 1500 gets an upgraded version of the 3.0-liter Duramax engine for 2023. This new power plant delivers more horsepower and torque, giving us more of what we want when it’s time to do big, beefy, truck stuff.
What did GM do to give more power to the Duramax engine?
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To find more power in a relatively small displacement diesel engine, GM got creative. Motor1 tells us that they have upgraded this engine with:
- A retuned turbo
- Improved fuel injectors
- New steel pistons
- Updated burn bowl
Does this new diesel engine solve some of the previous problems?
The previous version of the Duramax 6-cylinder 3.0-liter turbocharged diesel engine had some issues. The LM2, which is the 2022 version, suffered from a slow start. Some of the modifications made to bring us the LZ0 model solve this problem and improve the usefulness of the engine.
How is the new Duramax engine in the Chevy Silverado more useful than before?

The changes to this engine do more than add more power, but they also make it easier for you to enjoy riding with this engine. The new pistons are shorter than before, which helps solve the long-crank start problem. This beefier Duramax engine doesn’t require an inspection until 200,000 miles, double the previous number.
How much extra horsepower will you get with the new Chevy 3.0 Duramax diesel truck?
The upgraded LZ0 version of this engine produces 305 horsepower and 495 lb-ft of torque. That’s an increase over the 2022 model, which offered 277 horsepower and 460 lb-ft of torque. This engine always mates to a 10-speed automatic transmission for every truck and SUV, including this power plant.
Chevy Made A Weird Announcement And Almost Hid This Diesel Power Upgrade

Chevrolet hid the announcement of a more powerful Duramax engine in the folds of the news Chevy Silverado ZR2 Bison 2023. It’s a little strange because the ZR2 and ZR2 Bison models of the Silverado 1500 are not eligible for this diesel engine . Why combine the two announcements and bury the Duramax news? Well, some things are better left unexplained.
Which GM vehicles will feature the new LZ0 engine?
For the 2023 model year, the upgraded Duramax diesel engine is available for the Chevy Silverado 1500 and GMC Sierra 1500. Starting in 2024, this list expands to include:
- Chevy Tahoe
- Chevy Commuter
- GMC Yukon
- GMC Yukon XL
- Cadillac Escalade
- Cadillac Escalade ESV
Which Chevy Silverado Trims Offer the New Duramax Diesel Engine?

Many Chevy half-ton truck versions include an option for the new Duramax LZ0 engine. These toppings include:
- Custom track pattern
- LT
- RST
- LT Trail Boss
- ZLT
- High Country
When will we know the most important information about this new Chevy Duramax engine?

The fuel economy, towing and payload of the new LZ0 engine are still unknown. As we get closer to the arrival of the 2023 Chevy Silverado in dealerships, we should learn this information. Once we have those numbers, we’ll share them with you.
Then check out the changes to the new 2023 GMC Canyon or watch the Chevy Silverado Duramax diesel engine video below:
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