I think I figured out why my engine was starved for oil. check out the picture of my oil pickup. it has a hole in the top. When I took the engine apart, the pickup swiveled up and down. The only thing I can think of is that it hit the crank or a rod.
https://drive.google.com/file/d/0BzghoG21YVYEazFCQkNkaU9YODA/view?usp=sharing