So I take it you figured out we have cross-bolted mains?
I have a feeling that this motor will not last long. I give it another 100 miles before it chucks another rod. The 3800's seem to be very picky about having the rotating assembly in perfect line. Anything wrong and it's bye-bye motor all over again. I'd be willing to bet that a new wrist pin and rod cost you at least $150 from GM, if not more. I was looking to do this when I shattered #1 piston on my 00 GT. After some research I said f-that and bought a used motor w/ 100-something K on it and dropped it in. Runs like a new car and I don't have to worry about breaking it.
