Questions about 6.0 engine/Trans

[brandster]

Been looking for a decent priced 6.0 engine/2wd trans combo to go in my 67 C10. Found a complete cadillac escalade with the 6.0 and im assuming AWD 4L60-HD. Im not an engine/trans guy so this may be a stupid question, but what would it take to make the cadillac engine/transmission work without the AWD stuff, or should I keep searching for something thats not cadillac AWD... Thanks.

[AussieinNC]

Several options here....

Buy the Cadillac, break it down and sell parts you dont need....Sell the AWD components and buy yourself a 2wd trans and convertor from a wrecker yard....

It is possible to convert a $wd trans over the 2WD..upgrade the internals while you are at it...

or just keep looking for a cut out engine and 2wd trans combo....

Choice is yours

[mongocanfly]

and since your in TX..id be looking for clinebarger....

[LS short box]

Depending on the mileage of the 6.0 and the cost its easy to convert a 4wd 4L60E from 4WD to 2WD. Need a 2WD tail shaft and 2 WD tail housing. It does mean the trans will have to be totally disassembled but it's the perfect time to check condition. Any good trans shop can do it. I've done this a couple of times on my LS swaps because up in sunny MN finding a 2WD 4L60E is not easy. Most are all 4WD.

[brandster]

Ok, If I took the 6.0 engine from an AWD cadillac, but used a 2wd 4l80e transmission from another vehicle, what would I need to do to make the engine from the cadillac work with the 2wd trans from other vehicle? Thanks.

[tinydb84]

Originally Posted by brandster

Ok, If I took the 6.0 engine from an AWD cadillac, but used a 2wd 4l80e transmission from another vehicle, what would I need to do to make the engine from the cadillac work with the 2wd trans from other vehicle? Thanks.

That should just bolt up. You may have an issue with the flywheel converter matching (5.3's need a conversion piece to bolt to a 4l80 and older 6.0's had a longer crank). Its easy to check though. Bolt them together and make sure you have the required space between the two.

I cant help you on the wiring though. I am not familiar with the AWD wiring.

[bigmoe]

Originally Posted by brandster

Ok, If I took the 6.0 engine from an AWD cadillac, but used a 2wd 4l80e transmission from another vehicle, what would I need to do to make the engine from the cadillac work with the 2wd trans from other vehicle? Thanks.

If you get the trans from a same year vehicle as the motor then the electronics/wiring harness will match.

[brandster]

Originally Posted by bigmoe

If you get the trans from a same year vehicle as the motor then the electronics/wiring harness will match.

So if I get the engine (6.0) out of an AWD 2003 Cadillac and the transmission (2wd 4l80e) out of a 2003 2500 work truck, there shouldn't be any matching up problems?

Im just trying to verify what will work, im not a mechanical guy, im just trying to assemble the parts I will need before I jump off into this venture. Thanks.

[bigmoe]

Originally Posted by brandster

So if I get the engine (6.0) out of an AWD 2003 Cadillac and the transmission (2wd 4l80e) out of a 2003 2500 work truck, there shouldn't be any matching up problems?

Im just trying to verify what will work, im not a mechanical guy, im just trying to assemble the parts I will need before I jump off into this venture. Thanks.

That's what I did just to be sure. My motor came from a 4wd as well. Others will tell you other years will work but I'm in the same boat as you when it comes to limited abilities and anything you can do to simplify the process will help avoid future complications.

[LS short box]

Check over on LS1tech.com for info on flex plates. Some need spacers to match the trans.
Your 2003 should be a 24 tooth crank reluctor. So one ECM for the engine and trans. If you haven't done this before I would buy a ECM and harness from one of the vendors. They can give you a basic tune to get you going.

[jjzepplin]

A donor vehicle with all the necessary equipment that all matches is nice. You can find a 2WD 2500 pickup cheap and you can use all the goodies like fuel pump etc. all the nickel and dime stuff that adds up quick. I have not completed my swap yet as I sold the carcass too fast because I was moving, but if I had not I would be driving today.

[brandster]

Also wanted to ask about the plastic intake covers. I've seen some same year model yukons or cadillacs that say they have the 6.0 engine, but the intake plastic covering is different, so I didn't know if owners were changing them out or just don't know what engine they have. So are the intake covers interchangeable?

[mongocanfly]

I know some are...my engine came from a Cadillac and I changed it to a vortex cover..the guy I bought the engine from said he had people calling all the time wanting the Cadillac covers......

[Rich84]

Vans are a good place to get the entire package. The van intakes do not have the mounting location for the cover. Vans don’t have covers.

[bigmoe]

Originally Posted by Rich84

Vans are a good place to get the entire package. The van intakes do not have the mounting location for the cover. Vans don’t have covers.

That's right. Vans and work trucks are mostly 2wd. And apparently the tail end of the van engine wiring harnesses are longer giving you more options of where to locate your ECM. I went with a Gen IV engine (mostly because I found a 2008 low mileage write off). They are a bit more horsepower than Gen III, the engine cover is nicer, the ECM is smaller, they are better if using OBD run gauge packages.

[gmc684x4]

Are not most caddy motors 6.2 liter ?
Low milage runs well I assume not expensive

4l80e can be converted by a good transmission shop
Clinebarger is a member who builds transmissions in Texas you can ask him about converting to 2 wheel drive

A 4l80e tranny from another vehicle will work to it does not have to be exact year but year range

[mongocanfly]

My LQ9 6.0 came from a cad...I'm sure they went to the bigger ,higher hp ,engines with the later yr models..