The 2023 Chevy Silverado 1500 introduces the fourth model year for the latest fourth-generation pickup, ushering in a few critical changes and updates, including the introduction of the new 3.0L I6 LZ0 turbodiesel Duramax engine. Now, GM Authority has learned that the new diesel engine is more widely available to order, with recent production constraints lifted.
According to sources familiar with the matter, the new 3.0L I6 LZ0 turbodiesel Duramax engine is now available to order for 2023 Chevy Silverado 1500 LTZ and High Country trim levels. The new diesel engine is also available to order for 2023 Chevy Silverado LT, RST, and LT Trail Boss trim levels. The LZ0 diesel engine is not offered at all for WT, Custom, or ZR2 trim levels.
For those readers who may have missed it, GM Authority exclusively reported in April that the 2023 Chevy Silverado 1500 would offer the new 3.0L I6 LZ0 turbodiesel Duramax engine. The LZ0 could be considered the “second iteration” of the GM Duramax 3.0L six-cylinder engine, with the LM2 offered previously being the first.
The new LZ0 offers similar specs as the LM2, including turbocharged aspiration, 3.0 liters of displacement, and an inline six-cylinder design. However, the LZ0 replaces the LM2 for the 2023 model year to offer more output, rated at 305 horsepower and 495 pound-feet of torque. For those readers keeping score, that’s a 10-percent increase in power compared to the LM2’s 277 horsepower, and a 7.6-percent increase in torque compared to the LM2’s 460 pound-feet.
To make these numbers a reality, the LZ0 diesel engine features upgraded steel pistons, a revised combustion bowl, a retuned turbocharger compressor, new fuel injectors, and improved temperature control.
Under the hood of the 2023 Chevy Silverado 1500, the 3.0L I6 LZ0 mates exclusively to the GM 10-speed automatic transmission for retail customers. Engine assembly takes place at the GM Flint Engine Operations plant in Michigan.
Meanwhile, the Chevy Silverado 1500 is underpinned by the GM T1 platform, with production taking place at the GM Silao plant in Mexico, the GM Fort Wayne plant in Indiana, and the GM Oshawa plant in Canada.