Exhaust studs

[digitech]

Quick question - are the exhaust manifold - to - head studs supposed to be coated with sealant prior to installation? Seems like I saw something about these studs penetrating the water jacket but of course, nothing is mentioned in the manuals.

[beachboy]

On the studs that go through to hit water or oil, put thread sealant. I use Loctite thread sealant. On the studs that just go into the manifold, put anti-seize.

[digitech]

Okay, I know there were studs in the head originally but most of mine are gone and I've been using bolts - should I re-install the studs? Now I'm concerned the bolts may be too long and going into the water jacket on the holes that go through. What's the best way to go???

[So Cal Mark]

only the two highest exhaust studs go through-and that's into the oil galley. Those studs need to be tight and sealed or you'll get oil running down the stud

[digitech]

Thanks Mark, that clears that up. Better to return to studs for all of the attachment points or does it matter?