It is an undersquare aluminum DOHC inline-four displacing 2.7 liters (165 cid) and tuned for strong low-end torque.
[1] The BorgWarner developed turbo can produce up to 27 psi (1.9 bar) of boost thanks in part to its unique dual volute turbine housing and an electrically actuated wastegate.
With the unveiling of the 2022 model year Silverado, GM announced a significant revision that stiffened and strengthened the engine allowing for a GM-estimated increased maximum torque rating of 430 lb⋅ft (583 N⋅m) while also improving noise, vibration, and harshness (NVH).
This system consists of an electrically driven water pump and a 3-way rotary valve which allows the engine to maintain proper operating temperatures and quicker warm-ups.
Also, a continuously variable oil pump helps to lower parasitic losses and provide proper lubrication and cooling to the engine, especially under high-load conditions.