05RST2NV

iTrader: (4)

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??

charcold-bowtie

iTrader: (10)

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

Bo185

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.

nighthawk08

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.

silveradol33

iTrader: (30)

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

05RST2NV

iTrader: (4)

Im getting the PCM but not the harness!

BlownChevy

iTrader: (20)

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

budhayes3

iTrader: (19)

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?

cmb570

iTrader: (2)

can u find me an ls3 too ?

05RST2NV

iTrader: (4)

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..