Rebuilt Engine bearing wear

cudamark said
A rod knock sound will usually change if you kill the spark on it's cylinder. That might help narrow it down to the actual cylinder.

That's a good idea. Almost 90% positive it's cylinder 1 but I can narrow it. But I don't know why it's knocking... its got fresh bearings the were plastigaged. Only thing I can think is the crank is out of round. Idk. Kinda discouraging.