[LoJac963]

I did the AC on my 06 GTO with an LS2, basically same engine.

I replaced the compressor, evap block, and dryer. I thoroughly flushed the condenser and AC lines, new O-rings all around. Charged it up at home and it worked like a charm.

I bought all brand new AC Delco parts, Delphi compressor, all the good stuff. I wouldn't cheap out on anything. Oh and don't forget the oil.

Wasn't an overaly hard job but was a little time consuming since it was my first time ever messing with a vehicle AC system. You can find most the parts pretty reasonable at Rockauto.