Lextech
I'm Awesome
I have a 97 with 5.7 vortec and I am planning on either rebuilding or replacing with an LS. I read in this thread that it will be a simpler swap if the 411 is already installed which sounds great. If I build the current motor and bore it over, cam and headers. Will the 411 upgrade support these changes with no issues?
The 0411 PCM would need to be tuned to properly run your warmed up 5.7 and would have to be retuned for the LS engine. You can repin your harness to install the 0411 PCM into your 97. Then, when you install the LS engine you would rework your 97 harness and add 10 wires to it to run that engine.
Jeff