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Old 01-29-2009, 08:57 AM
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Anyone done a cummins conversion

Hi all

Just wondering if anyone had done a cummins 12v swap into an obs? I've been trying to sell my tford and switch to a dodge. I was thinking about the cummins swap, but don't really have the time hence why i wanted to jump ship as it would be easier.

Not having any luck with selling the ford though, so i'm thinking about the swap again. I see the adapter plate to run my ford auto behind the 12v is like $800 then i need a controller another $700 and my tranny is stock, so it would not hold up to a turned up 12v anyway. Can a dodge 5 speed from a
12v be shoe horned into a obs?

If i had to buy a ford diesel 5 speed it would cost me as much as a dodge 5 speed and i would still need a $800 adapter plate, so if i could get a wrecked dodge with a p pumped 12v & 5 speed i'd be in business (or would I)
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Old 01-29-2009, 09:56 AM
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I have a buddy here in town that did a cummins swap into his 96. He is running a cummins engine and a dodge NV4500 5 speed. So to answer your question, Yes it can be done. At what cost? That I cant answer.
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Old 01-29-2009, 10:18 AM
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Quote:
Originally Posted by bmxstreet15 View Post
I have a buddy here in town that did a cummins swap into his 96. He is running a cummins engine and a dodge NV4500 5 speed. So to answer your question, Yes it can be done. At what cost? That I cant answer.
Interesting

All the swap sites sell the adapters for keeping the ford tranny in there. Wonder if anyone sells a kit for the dodge tranny in a ford.

I assume your buddy kept the ford t case and just had custom drivshafts done for the nv4500?
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Old 01-29-2009, 11:02 AM
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Originally Posted by 95PDXLT View Post
Interesting

All the swap sites sell the adapters for keeping the ford tranny in there. Wonder if anyone sells a kit for the dodge tranny in a ford.

I assume your buddy kept the ford t case and just had custom drivshafts done for the nv4500?
That is a good question. He is hard to get in touch with but the next time I see him I'll give his truck a good once over and let you know. I want to say he kept the transfercase but dont hold me to that.
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Old 01-29-2009, 10:50 PM
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Plenty of people have swapped a cummins in an OBS so it can definitely be done and is a very cool swap, you can use the dodge tranny and adapter plates are also made for other transmissions as well, check out destroked.com for parts also beans diesel performance does a lot of destroked conversions so you could always give them a call
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Old 01-30-2009, 12:32 AM
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I have a 91 Dodge 1ton with a cummins and 5 speed. I don't know when they started to put power in these engines but this one has a really short power band and the trany is a piece of crap and don't even get me started on the body. The only reason I have it. It was my dads and it has a dump bed. I would just put a newer powerstroke in there you'll be a lot happier.
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Old 01-30-2009, 07:28 AM
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Originally Posted by TNACUSTOM View Post
I have a 91 Dodge 1ton with a cummins and 5 speed. I don't know when they started to put power in these engines but this one has a really short power band and the trany is a piece of crap and don't even get me started on the body. The only reason I have it. It was my dads and it has a dump bed. I would just put a newer powerstroke in there you'll be a lot happier.
94 was the first year of the p pump in the dodge. A fuel plate and a waste gate mod to the factory turbo with a good filter and your makin 600 plus ft lbs of torque at a lower rpm range than a power stroke for under $500. The big plus no electronics. I dunno what International was thinking putting the injectors and wiring under the valve cover.

Stock for stock my 95 PSD feels way more powerful than a buddies 94 3500 3.55 gears and a 5 speed. The 12v p pumped trucks were way under fueled stock.

I been threw the whole valve cover gasket repair and GP's once. That was enough to make me want no part of a computer controlled diesel. I wouldn't want a 24V either unless it was converted to a p pump. I feel helpless if something goes wrong. Turning a screwdriver is more in my domain than hooking up a scanner. I found out with my race car if you want to make power with a computer controlled vehicule its gonna cost double the $$$ compared to a carb. Same thing seems to apply to the diesels. A set of performance injectors for a 12V is like the cost of 1 or maybe 2 PSD injectors
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Old 01-30-2009, 07:30 AM
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Quote:
Originally Posted by TNACUSTOM View Post
I have a 91 Dodge 1ton with a cummins and 5 speed. I don't know when they started to put power in these engines but this one has a really short power band and the trany is a piece of crap and don't even get me started on the body. The only reason I have it. It was my dads and it has a dump bed. I would just put a newer powerstroke in there you'll be a lot happier.
If ya hate that cummins so much...I'll take it off your hands!
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Old 01-31-2009, 08:54 PM
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dont forget about timing, afc housing and fuel plate slid foward, 370 marine injectors, a 10 or 0 plate would be good, turning the star screw. then your makin some good hp in a 12v.
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Old 02-04-2009, 06:33 PM
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i actually would love to do this to my 95 powerstroke... I have a 5 speed in it now but would love to put a cummins with and automatic tranny in
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