General Motors is escalating the heavy-duty pickup horsepower war with an all-new 8.3-liter Duramax turbo-diesel V8 producing ...

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

In this case, more is more. GM built a powerhouse with its new heavy-duty pickup engine that makes 555 hp and best-in-class torque.

GM’s new 8.3L Duramax Mongoose is coming for 2027. Here are five things we know about the massive diesel V8—and five we still don’t.

There seems to be some confusion surrounding exactly how the new 8.3L Duramax engine will fit into the HD truck lineup, so GM ...

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 ...