LGH Duramax Diesel

Related Topics:

Duramax LML Specs

4.5L Duramax Specs

Allison 1000 Trans Specs

Duramax Diesel Buyers Guide


Return to Duramax Diesel Specs.


6.6L Duramax LGH







The LGH is a detuned version of the LML Duramax designed specifically for chassic cab & box-delete vehicles (RPO ZW9). Since these vehicles are sold as "incomplete", special emissions requirements are applied and, therefore, the LGH has a few different features than the LML. These differences include a revised turbocharger, detuned motor, higher capacity SCR system, and larger EGR cooler.



6.6L Duramax LGH Specs


6.6L Duramax LGH, 90 degree V8, diesel.

Years Produced:

2011 - present.

VIN Code:

L (8th digit of VIN)


403 cubic inches, 6.6 liters.

Head/Block Material:

Aluminum cylinder heads, cast iron engine block.

Firing Order:



4.06 inches.


3.90 inches.


Turbocharged and intercooled; different turbocharger than found on the LML.


OHV (overhead valve), 4 valves per cylinder.

Oil Capacity:

10 quarts w/filter.

Peak Horsepower:

335 hp @ 3,100 rpm.

Peak Torque:

685 lb-ft @ 1,600 rpm.