IDI to 12v Cummins - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 5 Old 09-16-2012, 03:57 PM Thread Starter Rookie
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IDI to 12v Cummins

t so I know there has been hundreds and hundreds of these 12v swaps into our OBS trucks. I have both trucks sitting my shop right now waiting to be ripped apart, just waiting for my vacation to start next month so I can get going on this project.

I am going to be doing a complete body off resto on my ford and pretty much parting out the dodge.

Truck 1:

1992 F250 Custom IDI 5speed with 3.55 gears Truck has 340,000+
It has a rebuilt 7.3 diesel that currently has about 180,000 miles and has about 8lbs of oil pressure when cold. I have been running very thick oil in it with a lucas additive just to get the 8 lbs. Ever since it was rebuilt it has had **** for oil pressure, im just going to swap it out before it blows up.

This truck has a Banks sidewinder kit on it with the 3 inch exhaust, it does not have an intercooler though. It has been plowed with since it had 50,000 on it and has been pretty much bullet proof. When I am done with the swap that turbo kit will be for sale but just want to make sure I dont need any parts from it for some crazy reason.

My question with this truck:
The transmission is pretty abused, it was rebuilt once before we bought the truck and has a lot of slop when in gear. It also grinds pretty bad when shifting into 3rd unless you match rpms pretty close. I know that is simply synchros but dont want to waste my time.

Should I rebuild the transmission or with it already having one rebuild should I toss it and buy a remanned one or one out of junk yard? If I do buy a different transmission do I have to use an idi trans or will a zf5 out of a powerstroke work with my transfer case. Im guessing it will but just want some clarification from someone who has been there.

Truck 2:

The truck I am swapping the motor from is a 97 dodge 2500 with the CTD. It has been modified slightly, such as there is an electric fan setup on it now, it has a BHAF (DIY intake for the ford guys) an adjust afc housing and star wheel. and some stuff that I probably dont know about yet.

I will be doing a complete write up on this swap and the build process of the truck, as when I do the truck it will get a lot of things that weren't there originally. Such as A/C put in, power locks and windows, rear disc brake conversion, 6bt engine, intercooler (7.3), stainless vent shutters, and a bunch of other things. It should be a lot of fun to do.

Time frame is to have this truck completely done and painted for when the salt is finally off of the roads.

Any input or help along the way will be appreciated.

91 F250 4x4 SCLB IDI Stick --- Sold
92 F250 4x4 RCLB IDI Stick --- Banks Turbo Kit
94 F150 4x4 RCSB 300 Stick --- Stock
99 F250 (early) 2x4 SCLB Auto --- Parts truck
99 F350 (early) 4x4 CCLB Stick --- Chipped
99 F350 (early) 2x4 SC 9ft bed Auto
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post #2 of 5 Old 10-11-2012, 04:40 PM
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Awesome!!! I want to put a Cummings in my 2003 f250. I can use your write up to help with my swap. Still deciding what all I need for the swap. Any help is much is it costing you??

S&B cold air intake
SCT 8900 with custom
7" single smoker Exhaust stack
MKM's 6.0 powerstroke solution kit
-Sinister EGR delete
-FACTORY head gaskets
-ARP head studs
Sinister coolant filtration kit
ATS coolant return kit
EGT probe before the turbo
Boost builder
Fuel pressure regulator mod
6.4 Banjo bolts


03 NISSAN 350Z
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post #3 of 5 Old 12-26-2012, 11:26 AM
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Any updates? I have been looking into this too for an IDI.

A ZF5 speed out of a Powerstroke should work just fine, or another IDI. I believe they are the same. Sounds like a cool build!

1995 F250 XLT 4x4 E40D

Current Mods: TW tuned, 3/8" trans. lines, BTS VB, Tru-Cool 40k cooler, 6637 Intake, 3" DP, 5" Aussies, Isspro EV2's, smoked tails/heads and 35w/5000k HID's, GM tow mirrors.
Future Mods:Rosewood Stage 2's, D66 with WW2, Intercooler, E-Fuel, T-500, SAS.

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post #4 of 5 Old 12-26-2012, 11:35 AM
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Originally Posted by 85pickup4x4 View Post
Awesome!!! I want to put a Cummings in my 2003 f250. I can use your write up to help with my swap. Still deciding what all I need for the swap. Any help is much is it costing you??
you've got a 6.0L! you should already be set.. maybe that yota could use a cummins.. get some bigger balls in it and bring it to the diesel world! just messing around.. this should be an interesting thread

2007 Ford F250 Lariat 6.0 Powerstroke

Banks Ram air
Sinister Coolant Filter
Swamps 48V FICM with PHP Atlas 40
B&W turnover ball hitch
EGR Delete
Diesel Site Intercooler Boots
SCT livewire TS 5015 w/IDP custom tunes
Agressive street, Tow W/jake brake, Economy

Other rides:
2010 Ford Explorer 4.6 24V V8
1999 Ford Mustang Cobra 4.6 32V V8
Smoked Heads/tails

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post #5 of 5 Old 12-27-2012, 06:36 PM

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the idi and cummins utilize a 3 wire hook up lol, both use injection pumps, and when your done with your swap i would love to take that turbo kit off your hands for my IDI lol, would do a cummins swap but i cant find the motor or a dodge with the motor in it already cheap enough, good luck

2000 excursion V10 2wd 230k
2000 Excursion 7.3 4x4 246k
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked

Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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