This is my first LS swap and what would you know I am getting a run for my money already. I had been wanting to swap a 6.0 into my 99 k2500 5.7 obs for some time now. I called my local truck savage and they said they had a 09 ly6. I am thinking great. Not long after I find out that the ly6 electronics are different that earlier ls systems.
I have been trying for figure out how to make it work, and this I where I am at so far. Please correct me if I am wrong. *Using the ly6 pcm (e38) I will need a tcm (e72) to control my 4l80e. But the e38 will not work with my factory gauges.
*If I use Lingenfelters 58x 24x conversion module I can use an earlier ls ecm like a 0411, but would need to get a dbc throttle body and delete vvt.