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Second gen chevy to cummins power, how-to post

Stomper,
Don't forget to take photo's,I tend to forget and then the project is done.
I would like to see photo's

Thanks
Scott
 
I do the same thing with the pics, never can remember :doah: It'll be next summer before I get to it, have to finish my other project first but I'm planning on lots of pics.

Brett
 
how much lift can you do with this swap?
Is it easier to do the swap if the previous motor was a 6.2? or does it matter at all?
 
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Lift with a Cummins

You can get away with a 2'' with a Dana 44, Corp 10 but with a Dana 60 must be a 4'' because of the bigger diff.The spring will sag so go bigger 2'' 4'' more.
Yes ,it does help being a diesel before the conversion. It just take longer for the gas,also you dont have to flush the fuel tank,chage the rubber gas line , the dash cluster won't say diesel.All come down to time and small things.

Thanks
CrewCab59
 
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how bout this

I think If I had to have a chevy with a cummins motor in it, I would take my chevy body and sit it on a dodge frame. I like the cummins idea. It sure looks like its pretty rough job to do all that changing to me.
 
Cummins in a Chevy

Well to install a Chevy body on a dodge frame would be alot more work.Body mounts,center of wheel,have to move engine,trans,t-case ,plus the frame are weak.So what have you gained?????

On a conversion cut holes in firewall for intercooler,install Cummins,bolt up trans add more power,what so hard about that????No different then installing a BBC,SBC justs take time.

If you drove a CC 1-ton with a gas or a 6.2 ,then one with a Cummins you will never go back to a gaser....

That's why we install a CUMMINS in a Chevy.....Just my 2 cents..

Thanks
CrewCab59
 
Cummins

THe main reason I said that was for the cost. As far as sitting gm body on dodge frame done did it. Its not that hard either. Had to go with after market A/C. We had it already. Just what ever you want to do I guess. My son is cummins person. I like a powerstoke my self. I know this 6.2 I got hasn't impressed me much. I found a shop that said he can make this 6.2 do pretty good so we will see. The reason put chevy on dodge. Someone stole the dodge, Only thing left was drive train and spare tire. Why they didn't sell motor is shocking We figured thats what they stole it for. The boy that owened the truck said reason the didn't take motor is that cummins don't wear out. Hold you really aren't going to like this. Said reason we put chevy body on it is everyone will think its a 6.2 and won't steal it.
 
Ok, Here are some pics I said I'd put up and I just took pictures of the part numbers so I wouldn't type them in wrong.........

***Don't blame me if you get the wrong parts****:p:

This is for the 3.9l to th400 auto trans...

#1 Crank spacer, bolted between the crank and the flywheel....sorry no p.n.

MVC-006S.jpg


MVC-005S.jpg
 
Flywheel pn.

MVC-009S.jpg


With my adapter (cut by DIY4X) for a th350 torque converter

MVC-008S.jpg


th400 torque converter adapter....sorry no pn. on this either

MVC-007S.jpg
 
This is just a thin washer/spacer for the bolts through the flywheel, crank spacer. no pn.

MVC-013S.jpg
 
This is the adapter for the chevy th400 (NOT BOP)......


MVC-010S.jpg


MVC-012S.jpg
 
Cummins and Auto trans update

Well been working on some new apdates Auto trans bolted up to the Cummins

- Chevy 4l80e and stand alone computer with custom made torque converter and stock bread truck parts.Trans and torque converter will hold up to * 600 HP - *1000 lb .

- New adapter that doesn't clock the Engine or Trans ( like be straight).

-Allison 1000 5/6 speed.

No date as of now,I will give more update as things change.

P.S shop will be down for bit moving out of state ,Things be be back up when new shop get's built...
any question just ask.
I will be on here from time to time .

Thanks
CrewCab59
 
After looking for a couple of days i finally found this thread and i'm glad i did, i have a '82 k20 that i want to put a '94 5.9 Cummins w/ an '04 NV5600, i belive the 5600 is a 2wd trans tho, what will i need to adapt the trans to the T case and is there a differnt bellhousing i need to go to the 12v from the 24v the 5600 was on? thanks
 
Stoneagemaxx......Does it look like this pic? This is my '01 4wd nvg5600 bolted up to the pass drop dodge 205. I don't have a picture of just the tail, but my 5600 is currently dissasembled. I think you would have to swap the output shaft, but I've never seen a 2wd version so I can't really say. The 12valve and 24valve share the same flywheel housing.

crewcab59.......could you elaborate on the 4l80-e project. That was a backburner idea of mine if I don't endup converting to stick. Does the 4l80 share the same bellhouseing bolt pattern as the th400?

5600-205-1.JPG
 
DEMON44 said:
Stoneagemaxx......Does it look like this pic? This is my '01 4wd nvg5600 bolted up to the pass drop dodge 205. I don't have a picture of just the tail, but my 5600 is currently dissasembled. I think you would have to swap the output shaft, but I've never seen a 2wd version so I can't really say. The 12valve and 24valve share the same flywheel housing.

crewcab59.......could you elaborate on the 4l80-e project. That was a backburner idea of mine if I don't endup converting to stick. Does the 4l80 share the same bellhouseing bolt pattern as the th400?
Click to expand...

The TH400 and the 4l80e as well as all GM trannies (not the Allison) are the same bellhousing pattern.
 
Cummins with auto trans

imiceman44 said:
The TH400 and the 4l80e as well as all GM trannies (not the Allison) are the same bellhousing pattern.
Click to expand...

As noted above, not all GM trans have the same bolt pattern.GM made 60* and 90* patterns.

The 60* Th200,700r are most bolted to 4cyl and some 6cyl.

Th200,350,400,Th475,700r,4l60e,4l80e are all 90*

Now back to the point.

The GM 4l80e can be made to handle to power of the Cummins,But you have to have a custom torque converter made .The stand alone computer is also needed to work the trans.I have been working with a company to build they products.This is a first to be done that I now of and I have talked to alot of trans company ( most say it can't be done or won't even try) Sorry for them suckers. I will be the test rat.

I will be testing the Cummins and 4l80e in my wifes 1999 Chevy Tahoe
4x4 4 door.Can't wait to get started.

When testing is done ,will update and be taking orders.
 
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The newer Chevy 205's have 32 spline and must have a round bolt pattern,most dodge were 23,29 spline .I haven't seen a NV5600 up close to give more info.Sorry
 
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