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

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

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

If you like seeing impressive engine specs, look no further than GM's latest V8 Duramax, which seems to be aiming to leave ...

GM's new 8.3-liter Duramax Mongoose targets Ford's Power Stroke and Ram's Cummins, but record diesel prices could hurt HD ...

General Motors just released updates for the 2027 Chevrolet Silverado HD and GMC Sierra HD. Leading the news is an all-new, clean-sheet 8.3-liter Duramax turbo-diesel V8 engine. Built entirely ...

Given the fact that GM's new Mongoose diesel V8 makes more power than the Ford Super Duty's 6.7L V8 Power Stroke, should The ...

GM calls it the "Mongoose," and it promises to beat Ford's "Scorpion" 6.7-liter Power Stroke that makes 500 hp and 1,200 ...

New diesel V8 will be GM's biggest passenger vehicle engine ever, just as diesel fuel prices soar to excessively high record prices.

The largest among the Big Three in Detroit has released teaser footage of the much-awaited Megamax, which is actually codenamed Mongoose ...

The next wave of Silverado HD and Sierra HD trucks introduces an all-new diesel engine and larger gasoline V8 options for ...