i'm trying to get all the parts i need together for my swap, and i am wondering about wiring stuff up. im going from a 91 tpi 5 speed to a 03 6.0 lq4 and a t56 from an 01 camaro. have the trans and found an engine, which will have the ecm and most of its factory harness. will i need to cut up my tpi harness to get plugs to make all the connections to the 6.0 harness though? is there someplace i could find just the plug ends i need to connect everything? what all is run off the bulkhead connectors that i will need to reconnect? i hate to hack up my existing tpi harness, its in really good shape, but is that the only way i can mfake the connections from the engine to my existing gauges, ignition switch, etc? any help at all would be great. thanks guys,

nick

 

The TPI harness isn't involved in the swap. The engine to chassis harness is.

Check the LS1 swap sticky. aaron's link contains links to wiring details.