The GM L5P Duramax is a turbo-diesel engine produced by General Motors for use in full-size heavy-duty (HD) pickup trucks. Displacing 6.6 liters in a V-8 configuration, the L5P is part of a new ...

In the May 2017 issue ofDiesel Power, in an article titled “Inside the Duramax L5P,” we visited Gale Banks Engineering in Azusa, California, and documented the complete dismantling of a ...

Diesel enthusiasts looking to upgrade the turbocharger on their 2017 through 2019 Duramax turbo-diesel L5P V8 engine can now turn to Wehrli Custom Fabrication for its latest single turbo upgrade kit.

Unbeknownst to many of you, we have been running and testing a defense-market version of the all-new, ’17 6.6L Duramax L5P engine on the dyno since late 2015. Based on what we’ve learned during this ...

445 horsepower (332 kW) and 910 lb-ft (1,234 Nm). That’s how potent the redesigned Duramax 6.6-liter V8 is for the model year 2017. Internally referred to as L5P, the newest Duramax is available in ...

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 ...