ls3 4l80e swap , about to begin

[chvz99]

finally im about to start my swap i have all parts ready minus fuel filter and lines.
motor just came in today.
i also recently found out that my e67 its not compatible to work with a 4l80e .although the truck came factory with this trany .
I have a question for yall can i make my stock ecm controll the tranny and just use my gmpp ecm to control the motor?
I want to avoid having to buy a new ecm harness and trans controller. any info will be apreciated.

[RedHeartbeat]

Hmmmmm.... 80e not compatible?

[chvz99]

thats what the tuner said that is not compatible with any OS from an e67.

[cpwire]

I have put the 4L80E on several E67 computers and not had any issue.
It has more to do with the programming in the Trans computer then the Engine computer.

[03whitez71]

If you don't mind telling, how much did the ls3 run you?

[Botlfed]

I think your tuner doesnt know his ass from a hole in the ground. Just my opinion of course.

[TRPLXL2]

Wow that motor looks NASTY!!!!

I was just looking at that in the GMPP catalog, good luck with your swap I am sure it will fly!!!

[chvz99]

the motor was 6k with shipment,
im going to change rod bolts in it. it also comes with ls9 head gaskets ill probably put a tvs2300 in about a year.
I have gmpp e67 with stand alone harness this will make the engine run, can i make this work with my stock ecm and tranny, and not have to buy a trasmission controller...

[chvz99]

i bought an engine stand last week and got the engine fully assembled , im working on a coil relocation bracket its just that this truck coil are to big.
also foud out that i can run a trailblazer ss 2007 OS ,ecm / t42 to make my setup work now I need a way to get a t42 harness and tied into my gmpp harness.
I will call nelson performance to see if they can do that for me.

[chvz99]

motor is ready, just waiting on resolving the harness problem to start taking out the 350, I also have this pulley kit for it, which i migth end up selling to start funding for a s/c kit to come.