Found a deal on a LS3 6.2 escalade motor. What all needs to be changed with the wiring harness or will it bolt right up to my 05, 5.3 harness??

 

that a gen4 motor I think. Not sure what all is needed tho.

 

You'll need a harness for it and the PCM. Its a Gen IV with VVT and a 58x reluctor wheel. It will bolt right in through. Might want a 6l80 or at least a 4l80.

 

i thought sdparts.com was advertising a kit for putting a gen 4 motor in a gen 3 chassis. I saw it in their magazine add but dont have it infront of me. Can't find it on their website. though.

 

Def a gen 4 motor, I think there is a few companies out there making the swap harness now.

 

Im getting the PCM but not the harness!

 

It will run on your PCM.....just call Speartech, they have all the needed harnesses.

 

58x vs. 24x reluctor wheel, different cam sensor location, and different knock sensor locations...as far as I know. I'm guessing that modding the harness is as easy as lengthening some wires and possibly swapping some connectors.

Do the 05's have a 58x reluctor wheel on the crank, what year did they switch?

 

can u find me an ls3 too ?

 

Quick question??? I found a 6.0 and under the 6.0 on the front of the block it has IV?? This is the first i seen like this.. This mean a gen 4 or what?? Its a sweet deal but trying to find out some more info on it..