Known under the VIN code Y, the L5P Duramax is the latest evolution of the 6.6-liter turbo diesel that powers the Silverado HD and Sierra HD. Introduced for the 2017 model year and mated exclusively ...

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

Edge Products is giving GM Duramax owners a shot at upgrading their oil-burner with its new Insight CTS3 and Evolution CTS3 kits, offering not only digital monitoring of engine parameters, but also ...

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 V8 was available along with the larger 5.3-liter V8 for the half-tons.

When you're in the market for a truck and pondering your options, there's one consideration that's generally going to be a higher priority than any other — power. Trucks are often among the heftiest ...

If you’re in the market for a full-size sport utility vehicle of the body-on-frame flavor, there are plenty to choose. What’s not so plentiful is the option of a turbo diesel engine for these ...

In 2026, Ford’s 6.7L Power Stroke diesel outpaces GM’s 6.6L Duramax L5P in raw output and towing capacity, while the Duramax retains an edge in smoothness, fuel efficiency, and ease of maintenance.

If you’re looking to build a hugely powerful diesel engine, the kind of thing that’s suited to drive a monster truck, then Gale Banks and the folks over at Banks Power are the wrenches you want in ...

With the introduction of the '07 GMT900 trucks, you can get a 2500HD or 3500HD with an all-new body and interior wrapped around a cleaner and more powerful version of the famous Duramax diesel or a ...