Team Paulie

iTrader: (1)

I right now have a 2004, with a 4.8, rcsb, could I swap out my little motor for a LQ4 and it's ECM? or buy a harness, hack it up and then make it work? or just buy a already made harness? 4l60E is my trans too.

Team Paulie

iTrader: (1)

I'm trying to take as little time as possible to do this, it's my DD and kinda need it around.

white1

iTrader: (5)

Swap and tune. No need to hack or change anything. All you accessories from the 4.8 will work on the 6.0. Wiring harness as far as engine is concerned is the same.
Your PCM from the 4.8 will work, just need a re-tune for the 6.0

Start saving for a transmission and you're GTG

Team Paulie

iTrader: (1)

Any year's I should be after? I was thinkin 04-06....

white1

iTrader: (5)

As long as it has the 317 heads. So anything from 2000 on up. I think they made some changes in 02, so I'd look for 02 or newer, but wouldn't pass a good deal on anything with the aluminum heads

Team Paulie

iTrader: (1)

what if I get the ECM from the donor truck? Just swap and turn key?
I also remember seeing something about havein to pull a spacer outta the back of the crank?

white1

iTrader: (5)

If you're looking at newer 6.0's they don't have the spacer. Just use your flex plate off the original engine.
If the donor truck had a 4l80 transmission, and you're using the 60, you'll have to reflash the PCM for the transmission controls.
IMO I'd just use the PCM you have now assuming the last 3 digits are 311 (I think that's them. Maybe 411)
also the PCM interfaces with the BCM so there may be some issues using the donor PCM.
To get the best out the motor, you really need a custom tune. Anyone who tunes it should be able to flash a 6.0 tune over what you have.

Team Paulie

iTrader: (1)

so fly wheel, swap, tune, burn out's.

Team Paulie

iTrader: (1)

this LQ4 I got now is junk so I'm looking for another.

Team Paulie

iTrader: (1)

Anybody got a short block they dont want?