Not upsidedown. But look at the pushrods where they are hitting the head.

Rocker arms have an offset where the pushrod is, some one installed them with the offsets the wrong way.

Needless to say pushrods, rockers and shafts will need replaced.

Here is another picture that shows the pushrods spred apart at the top. They shoud not be angled that way.

I spotted this as soon as I removed the intake and valve covers.