360 head trip
No water to be found directly above the kink 'though there is under the spring pad', however there is one head bolt on each head that is recessed more than the others...so you do stand chance of going through the edge of it...but luckily you can just jb weld a thick hardened washer in before you stick the head bolt in.
I did that on other my J heads.
And the same go's for the valve cover bolts, just use a set of studs and some jb weld.