DELTAMAX Duramax HMMWV Conversions

The DELTAMAX is the ultimate HMMWV experience.  The Duramax engine conversion with Allison 6 speed transmission provides 500 HP and 1000 ft./lbs. of torque.

We currently offer 3 DELTAMAX options, as well as HMMWV Duramax Conversions.

Click on the option for pricing and details

Option Bravo Option Charlie Option Delta


Duramax Engine Conversion- $32,500

6.6 Duramax Engine w/ Allison 6 Speed Transmission/ Standard Transfer Case

New Gauge Package

Engine Cooling Package:

  • Radiator, Hoses, Fan Assy & Pressure Tank w/ Upper & Lower Hoses

Intercooler Package:

  • Intercooler- custom Hi-Flow Alum. w/ 2.5” OD outlets
  • Pressure Pipes- Mandrel bent- polished alum. w/ bead rolled ends
  • Pressure Pipe Boots/Clamps, Bracket Assy &Turbo Inlet Pipe

Transmission Cooling System:

  • Dual Fan-Cooled Trans-Coolers, Alum. Fittings, & Hi-Pressure Lines

Engine/Transmission Mount Kit:

  • Engine to Frame Towers, Transmission Cross Member, & Hardware

Shift Linkage w/ 4x4

Intake System w/ Hi-Flow Filter

Body Lift- 2.5” w/ Steering Shaft Drop Plate

Inhouse Engine Harness Modification: Fuse Center, Vacuum pump, & ECM Bracket

500 HP Download w/ Programming

4” Duramax Exhaust System:

  • 3 to 4 Mandrel Bent Down Pipe, 4” Intermediate Pipe, & 4” Mandrel Bent Tailpipe

Throttle Bracket w/ A/C Bracket

Fuel Lines w/ Hardware & Fuel Filter Bracket

Custom HD Front-Rear Driveshafts