The L5P and LBZ are considered two of General Motors' best Duramax diesel engines, but each comes with its own strengths and ...

Historically, the 5.7-liter 350 cubic inch was the power plant, until the LS series came about, in which a smaller 4.8-liter ...

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 ...

Details are trickling in on GM’s hotly anticipated baby Duramax diesel, a turbocharged 3.0-liter inline six-cylinder for light-duty Chevrolet Silverado and GMC Sierra pickup trucks. Up until now, ...

We know the target for the 2015 Ford Power Stroke was to beat the horsepower and torque ratings of the 2014 Ram Heavy-Duty HO Cummins and the overall performance characteristics of GM's current ...

Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Growing up, Mark always had a mind for tinkering on random items throughout his home and dad’s garage, including a 1953 Ford Mainline and ...

Duramax LB7 V-8-powered G-Body 1978 Chevy Malibu was one of the coolest work-in-progress drag cars at Florida Truck Jam. Senior editor KJ Jones’ walk about the Florida Truck Meet’s show area and the ...

Supercars are incredible things. Not only are they quick enough to create their own gravity field, their striking designs immediately transport those lucky enough to catch a glimpse of them back to ...

Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Growing up, Mark always had a mind for tinkering on random items throughout his home and dad’s garage, including a 1953 Ford Mainline and ...

While a horsepower war is raging in the world of performance cars, a torque war is underway among manufacturers of heavy-duty pickup trucks. The Detroit Three are constantly looking for ways to boost ...

Diesel-powered pony cars—so perverse and unnecessary that I have to admit I'm intrigued. The real question is, what's filthier: the fumes pluming out of these exhaust pipes or the grandiloquence ...

If you own a truck with the 6.6L Duramax diesel, you already know what it costs to feed it. The engine makes 470 horsepower and 975 lb-ft of torque, and it will haul just about anything you can ...