Maybe I missed something but I thought OP said he had an NOS shortblock. If that's true what's the need for boring and pistons at all. There's a lot to be said for a stock bore and pistons not to mention the stock size rotating assembly. Basically all he'd have to do is come up with a properly aligned oil pan, pump and have the head rebuilt. What am I missing? I've been on pain meds from a kidney stone removal so that's certainly possible. Drink more water!