connecting rod direction

when i bought the engine in question, the owner had said it was a virgin and had never been rebuilt, and everything i observed in the engine led me to believe the same thing. The caps and rods were stamped. and the clean up at the machine shop said the same thing it was minimal to clean it up, in fact everything i ordered ( bearings ) were at .010 over and rings were .020 were not commonly carried and it took extra time to get them. I measured the bores and they came up almost 4.04. I've read that the factory had stamped depending on the situation and had even put in reground cranks up to .020.