I have a totaled ls1 car and want to take the stock body harness and use it as a stand alone engine harness. Does anyone have a diagram showing what needs to be hooked up, I want to hook it up like it would be in an ls car but not useing anything but the engine stuff, the rest will be hidden behind the dash.

 

the engine harness is "stand alone" without the body harness but will require modification and the pcm will require a reprogramming. pocket's done a few thorough threads on the subject, so i'd do a search for his name and you should find everything you need. everything else should be here:
http://lt1swap.com/wiringharness.htm