There is no second one. A full diesel conversion, rebuilt Allison 6-speed and upgraded cooling and brakes, ready to drive out of Hickory, NC.
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Two specialist shops. One handled the custom work, the other engineered the powertrain that makes this truck drive like nothing else with a HMMWV body.
A full-service custom automotive shop covering nearly every part of a build, from pre-war classics to new vehicles straight off the lot. Known for pushing both the technical and the artistic side of custom work.
Visit viceunltd.com
A family-owned Hummer performance shop since the mid-1990s, specializing in Duramax and Cummins conversions, tuning and fabrication for H1, H2, H3 and HMMWV platforms.
Their conversion pulls the factory engine and drops in a 6.6L Duramax with a Garrett variable-vane turbo and air-to-air intercooler for near-instant boost across the power band.
Visit predatorinc.comEverything that went into the powertrain, in one place.
| Engine | 6.6L Duramax LBZ, 90° V8 diesel |
|---|---|
| Production years | 2006–2007 |
| Displacement | 403 cu in (6.6 L) |
| Head / block | Aluminum cylinder heads, cast iron block |
| Compression ratio | 16.8 : 1 |
| Bore × stroke | 4.06 in × 3.90 in |
| Aspiration | Turbocharged and intercooled, Garrett VVT with air-to-air intercooler |
| Injection | Direct injection, 26,000 psi Bosch common rail, CP3 pump, 7-hole injectors |
| Valvetrain | OHV, 4 valves per cylinder |
| Emissions equipment | Diesel oxidation catalyst (DOC) and EGR |
Fully torn down and overhauled with upgraded internals, a triple-disc torque converter and a recalibrated valve body.
Driving Line covered the build as an ultimate HMMWV restomod, calling out the power of the Duramax swap without any loss of reliability.Read the article
Viewings are by appointment in Hickory, NC. Send a request or call directly.