Slant 6 904 case question

Looks like near the top which is good, at bottom I wouldn't try it.

You can get it flat and clean, fill it with sealer when installing front pump. Just enough sealer to fill the gap, not much more to control the ooze. Sealer on pump side also, just a small amount.

The right stuff is a good product.

But in the long run it would be better to get another case since they are almost free, if you can find one close by.