General Motors has teased a new Duramax diesel 8.3-liter engine that it has dubbed “Mongoose.” GM’s teaser video took shots ...

GM has teased a monstrous new 8.3-liter Duramax called the Mongoose for its 2027 Silverado HD and Sierra HD.

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 ...

We don't know much about the new Duramax, but its name gives us a clear indication of its mission statement: beat Ford's new Power Stroke V8, the Scorpion.

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 ...

General Motors has confirmed the rumored 8.3L Duramax Turbo-Diesel V8 engine, code-named Mongoose, for the 2027 Chevy Silverado HD and 2027 GMC Sierra HD.

It doesn’t sound as cool as “Megamax,” but the General has a good reason for the moniker.

GM has confirmed that it will debut a new, Ford Super Duty hunting 8.3L version of the Duramax diesel dubbed the 'Megamax' in its 2027 model year HD pickups.

General Motors is continuing its full-scale truck overhaul, dropping a teaser for the engine set to power its upcoming heavy-duty pickup lineup: a massive 8.3-liter Duramax turbodiesel V8 nicknamed ...

General Motors teases its new 8.3-liter Duramax V8 turbo-diesel engine. It’s called the Mongoose, a name that aims at Ford’s ...

The 2027 Silverado HD and 2027 Sierra HD will offer a new Duramax diesel engine, as GM Authority covered. The question is - ...