Surprise, surprise. I guess we found out what that pesky little ticking was. The best we can tell, this is a cup plug from one of the front block oil passages. It must have popped and fallen down through the timing chain cover. The engine had just been run the day before for a brief period and sounded ok. We did notice a drop in oil pressure from 60 to about 40.
Looks like we'll be taking the front of the engine off......weh.

Think it's time to go on vacation.