GM announced the Duramax 8.3L turbo-diesel V8 on September 24, 2026, and it goes into the 2027 Chevrolet Silverado HD and GMC ...

GM's new engine breaks a 56-year-old record, also held by GM.

Specs for the new 8.3L Duramax, aka Mongoose, are impressive, making over 1,200 lb-ft of torque. However, it looks as though ...

Chevrolet is charging a lot of money for the L6P engine, and the 2027 model year Silverado HD also costs more than its 2026 ...

There will be no choosing between two Duramax engines in the 2027 model year Silverado HD or Sierra HD, as per the order ...

As GM Authority exclusively covered last week, the 2027 Chevy Silverado HD and 2027 GMC Sierra HD will introduce two new engines, including a new gasoline powerplant and a new Duramax diesel. The ...

General Motors launched the first 6.6L Duramax V8, known among diesel engine enthusiasts as the LB7, in 2001 for its heavy-duty pickup trucks. The LB7 Duramax engine design resulted from a ...

General Motors once stated, on the record, that every prototype of its 4.5L Duramax V8 diesel had been destroyed. That claim just got a lot harder to defend. A surviving unit has surfaced in Sweden, ...

General Motors has been using Duramax diesel engines in certain workhorse models for nearly a quarter century. The 6.6-liter V8 version which powers Chevy Silverado 2500/3500HD and GMC Sierra Heavy ...