I am new to this so bear with me. I am building a LS1 and currently have the 4l60e and ECU from the donor car. I was thinking of swapping out to a T56 but I am unsure of what it will involve as far as changing wiring/ECU/etc.
Can the current ECU be reprogrammed for a manual T56? Would I need to located a new wiring harness for the lower end? anything else you might want to pass along would be appreciated.

Thanks

Feel free to ask questions because every answer gets me closer to being able to contact members in the classifieds

Yes I did and got back multiple results but not what I was looking for.

 

pcm can be flashed to a manual and I am using a auto harness on a m6 you just wont have a skip shift, reverse lockout, or back up light plug none were a problem for me so I didn't wire them in or changes harnesses and the plug for the auto I just zip tied out of the way

 

Ok Thanks. I appreciate the help

 

Try this its a sticky https://ls1tech.com/forums/new-ls1-o...w-archive.html

 

Car will run with the a4 harness and ecm the speedo will just read half speed.