Powertrain: (Using best factory options, no exotic swaps.)
Surplus 2010 GEP Optimizer 6.5l diesel long block to replace the factory 1994 6.5l. No swap fitment, title, or emissions issues as this is stock for stock. Brackets off of the 1994 engine will be used to mate the 2010 engine to factory style suburban accessories. DB2 injection pump will be used.
Will use the new engine naturally aspirated not turbocharged. (After analyzing BSFC maps at comparative partial load throttle positions between turbocharged and naturally aspirated 6.5L engines I do not think I would see a significant efficiency gain turbocharging. WOT is another story, but this is not a WOT project.)
Electric Fan conversion. Will upgrade and use controller I built for the Tacoma, but use more powerful fans.
1994 GM NV4500 Transmission with the 6.34:1 first and 0.73:1 fifth gears. NP241 manual shift transfer case.
Eventually will swap the 4:10 gears in the 9.25 front and 10.5 rear differentials for 3.42 gears. (1800 RPM to 1500 RPM at 55 MPH with 32” tires)
