Hummer H1 or H2 can have Predator Diesel Conversions fit your rig with a Duramax/Allison combination. The conversion includes a part-time two-speed transfer case, intercooler, fuel cooler, Duramax wiring harness, modified ECM, and “several hundred other items that go into the massive conversion process.” If you have an H1 you also have the option of a Cummins 6BT with either an Allison or 4L80E transmission. With each conversion there are a significant number of performance upgrades available.

Predator Diesel Conversions
1250 Distribution Way
Vista, CA 92081
United States760-734-1749
- Diesel Performance
- Light Duty Truck
Has Dyno:
Unknown