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 ...

The Iconic 2011-2016 6.6-liter LML Duramax V-8 engine is the capstone of GM’s Pre-L5P turbodiesels. Duramax. It's a name that truck enthusiasts instantly associate with Chevrolet and GMC heavy-duty ...

Of the three United States automakers that offer diesel-powered heavy-duty pickup trucks, only two of those diesel engines are V8s. Those V8 diesel engines are the 6.6 Duramax found in offerings from ...

The 6.6-liter LMM Duramax V8 diesel engine was introduced midway through the 2007 model year, when it replaced the 6.6 liter LBZ Duramax variant. As such, it powered Chevrolet Silverado Heavy-Duty and ...

When the LLY Duramax V8 debuted midway through the 2004 model year, it had an SAE-certified output rating of 310 horsepower and 520 pound-feet of torque, with the latter growing by 85 to 605 pounds of ...

When the off-road focused Sierra AT4X debuted, it was equipped with just a single engine option: GMC's premier 420-hp, 6.2-liter V-8. However, since the introduction of the rugged AT4 trim in 2019 ...

Matt Nelson is an automotive journalist with nearly a decade of experience in all things cars. He's spent years working at dealerships in sales, finance, and service. He's since traded in his pens and ...