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Anyone regret doing a Cummins swap?

YotaAtieToo

Thick skull
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Plan is for the guy to run it for a few minutes and recheck valve lash. Then I'll take it home.
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rockota

white collar hillbilly
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Did you spray the sound deadening on the firewall?
 

06h3

Well-known member
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I think that this is a common enough swap that you may have a few minor issues in the beginning working out the bugs but once you have it ironed out you will be golden.

For what it’s worth I have a 6.2 LS in my H3 which isn’t factory and it isn’t setup standalone so it has every wire you can imagine plus some for factory integration and I’ve put over 30k miles on it and I haven’t been stranded due to weird engine swap issues. I’ve been on the side of the road due to a failing 4L60E though but that’s a different scenario :laughing:

So with all that said, I don’t know shit about 5.9s other then I hear they can run off of 1 wire and you have a manual trans. That sounds about as bulletproof as it gets.
 

Projectjunkie

Whatever
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Stubpid shit like accessory belt issues, rad hoses, wiring, ect.

I'm hoping that any issues I have will just be nuisance things and not stuff that actually leaves me stranded. Which is one thing the 7.3 never did to me.
Wiring is minimal, and even then, won't leave you stranded, flip your whole battery cable set over for the driver side dodge starter, put the ford sending units in bushings in the cummins. On belt issues, either run the dodge accessories and rock out, or buy the aftermarket stuff, which isn't cheap, but should be well sorted and have reviews/ online feedback. I ran a 1st Gen upper house and a 2nd generation lower hose on a 1st generation rad, went together like it was made for it.

I never got the tach working in mine, somebody makes a kit tho
 

JR4X

wheeler
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Man I don't know, I need to get it going.

I still have this fear of it having constant issues, but who knows.
With this swap having been done before you, you shouldn’t have any surprises. Once it’s up n running with no leaks you should be many years before anything troublesome pops up again. This is a dream combo of mine and I’m still watching.
 

YotaAtieToo

Thick skull
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Bonners Ferry, ID
Wiring is minimal, and even then, won't leave you stranded, flip your whole battery cable set over for the driver side dodge starter, put the ford sending units in bushings in the cummins. On belt issues, either run the dodge accessories and rock out, or buy the aftermarket stuff, which isn't cheap, but should be well sorted and have reviews/ online feedback. I ran a 1st Gen upper house and a 2nd generation lower hose on a 1st generation rad, went together like it was made for it.

I never got the tach working in mine, somebody makes a kit tho

Starter is on the same side because zf5.

I went with the carrick customs ac mount to keep the Ford pump and lines.

You're right on the sensor bushings

Not sure what to do on rad hoses. I'd like to keep the 7.3 rad, but I'm also not a fan of the degas bottle, especially since that's where the air filter wants to live. Plus the inlet is wrong. I thought about using an idi rad since it swaps inlet and outlet, but then I think the out let is wrong :laughing:

Funny enough, the 2nd gen dodge rad has the inlet on the opposite side on the Cummins :homer: and my ac mount is in the way for a stock dodge Rad hose.

With this swap having been done before you, you shouldn’t have any surprises. Once it’s up n running with no leaks you should be many years before anything troublesome pops up again. This is a dream combo of mine and I’m still watching.

This is exactly why I was good with doing it.
 

Projectjunkie

Whatever
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Starter is on the same side because zf5.

I went with the carrick customs ac mount to keep the Ford pump and lines.

You're right on the sensor bushings

Not sure what to do on rad hoses. I'd like to keep the 7.3 rad, but I'm also not a fan of the degas bottle, especially since that's where the air filter wants to live. Plus the inlet is wrong. I thought about using an idi rad since it swaps inlet and outlet, but then I think the out let is wrong :laughing:

Funny enough, the 2nd gen dodge rad has the inlet on the opposite side on the Cummins :homer: and my ac mount is in the way for a stock dodge Rad hose.



This is exactly why I was good with doing it.


There's more than one way to skin a cat, and I've seen clean builds using a 7.3 radiator and a guy spend some time fabbing up clean piping to do so..... it wasn't something I could do good/ fast/ cheap

My build used a gasser 92-96 front clip and core support, I robbed the 2nd battery tray from the 88 IDI front clip I pulled off, but didn't feel the radiator was worth the effort

The 2nd Gen radiator is short and wide, not an easy fit in the ford grille, was $225 at the parts store versus $450 for the 7.3

Your cooling stack needs to work together, and imo the 6.0 IC, the OBS ford condenser and the 92-93 dodge radiator was the best fit

I did have to make a fan shroud from tin to get 40deg ac in the 115deg desert. Which was very fucking pimp in my limo tinted crew cab:smokin:




I over think things and get stuck in analysis paralysis, but when you've poured over all the specs and dimensions for weeks, the shit goes together like Legos...
 

YotaAtieToo

Thick skull
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So I was eyeballing the path for the down pipe and this kinda looks like it should work.


I'm thinking if it's close, I can mod it a little. If it's not, I'll just order some mandrel bends.
 
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