I am Chuck Rackley and i just joined this site this morning. I hope to find info to help with my project. We purchased a 2008 LNF engine from a wreaked HHR SS that only had 1000 miles on it. We had an adaptor made to mount a Rotator Gearbox, 2.68 to 1 ratio to mount the Prop on. We plan on using the stock ECM and have installed the main engine wiring harness. We haven't been able to find the part number for the harness that connects to the ECM that has the 58 way connector. The locale dealer keeps ordering me the wrong harness. We are installing the GM stage 1 performance kit and a MPz intercooler. I also have have to find a standalone tuning program for this engine or help getting it tuned.

Thanks, Chuck