Did I hurt my head?

[71CHEVYSHORTBED402]

71 402 - I'm green to all of this Engine was previously rebuilt, I'm just adding new gaskets and such


Three weeks ago I washed the heck out of my engine block. And two weeks ago I turned the engine upside down on a stand to work on the oil pan. I left the block upside down. That's a bad combination, don't do that

So today I pulled the spark plugs, was working on some stuff when I see water draining out of the #7 spark plug hole......YIKES. That "cylinder" is at the lowest point where the engine was positioned on the stand, upside down.

I wasn't going to pull the intake today, but I couldn't take it off fast enough. So I turned the engine upright and oil and "fluids" poured out of the bottom (no pan). Anyway, this is what I found (pictured). Only thing I can think of is water came through the intake somehow. Could have been the crappy valve cover gaskets, I pulled the covers as well.

You figure I jacked this up? Near as I can tell I vacuumed it dry. I'm thinking about taking a pipe brush to the port, for lack of a better term, vacuum as I go and then hit it with fogger. Might be better to skip the brush, I don't really know.

Ideas, input appreciated.