2023 Chevy Silverado Duramax Diesel To Get New LZ0 Engine

The forthcoming 2023 Chevy Silverado 1500 will arrive as the fifth model year for the fourth-generation nameplate, expected to introduce a few changes and updates over the fully refreshed 2022 model year. Now, GM Authority has learned that 2023 Chevy Silverado Duramax models will be equipped with the new 3.0L I6 LZ0 engine.

The new LZ0 engine slated for use in the 2023 Chevy Silverado Duramax will carry similar specs as the LM2 turbodiesel in use with the current Silverado 1500, with turbocharged aspiration, 3.0 liters of displacement, and an inline-six cylinder arrangement. That said, the LZ0 could be considered the “second iteration” of the automaker’s Duramax 3.0L six-cylinder, with the LM2 being the first.

It’s unclear at this time exactly what the LZ0 will improve upon as compared to the current LM2 engine, but we can expect things like improved fuel economy, lower emissions, or an increase in output and capacities.

As a reminder, the current 3.0L I6 LM2 turbodiesel offered by the Chevy Silverado Duramax is rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque at 1,500 rpm, returning upwards of 31 mpg on the highway when under the hood of 2022 Chevy Silverado 1500 RWD models (23 mpg city, 26 mpg combined). Max payload for this model is set at 1,930 pounds, while max towing is 13,300 pounds. The LM2 diesel engine is also under the hood of the Chevy Silverado 1500’s corporate cousin, the GMC Sierra 1500. In both applications, the LM2 is mated to the GM 10-speed automatic transmission.

Check out GM Authority’s previous coverage for a comparison between the Chevy Silverado Duramax LM2 and its closest competitors, including the Ford Power Stroke and Ram EcoDiesel.

In addition to the 3.0L I6 LM2 turbodiesel Duramax, the refreshed 2022 Chevy Silverado 1500 is also available with the turbocharged 2.7L I4 L3B gasoline engine, naturally aspirated 5.3L V8 L84 gasoline engine, and naturally aspirated 6.2L V8 L87 gasoline engine. Production takes place at the GM Silao plant in Mexico, GM Fort Wayne plant in Indiana, and GM Oshawa plant in Canada.

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