Head Re-Installation Questions Options

[frank_c]

I received my cylinder head back from having a valve replaced, and have a couple of questions regarding re-installing it.

Note: the #4 intake valve was replaced due to the adjuster wearing the tip of the valve as posted in this thread: http://www.914world.com/bbs2/index.php?showtopic=377159. There were no issues with either cylinder leaking at the base or the head, and no other work was performed to the head. Also, I left the cylinders as-is on the studs after removing the head.

1. Since the head was not machined, there was no issue with either cylinder leaking when the head was removed, and the cylinders were not removed during this time, is there any 'prep work' that needs to be done either at the cylinder/case interface, or the cylinder/head interface, before bolting the head back on?

2. Is Loctite 574 a good sealant to use under the four head stud washers that are under the valve cover (it's what I have on hand)? It looks like a black RTV was used previously, and that was starting to lose its adhesion.