A little googling goes a long way.
https://www.google.com/search?hl=en.....1ac.1.34.heirloom-hp..5.31.2459.UCq8JGSUH_U
Some info sources for you .
Didn't read much but a couple say don't use permatex white,i don't know if thats what you have but i would maybe do a bit more reading and guru probing before you use it.
It may be the right stuff but at this point you want to be POSITIVE first.
Maybe call Jack Cotton ,where you bought the studs ,to see what he suggests or to see if the stuff you have is ok.
How did the thread cleaning go ?
I agree about a bit o' Goog'age. Googled Permatex 80632 head bolts, and found this thread:
http://www.chevelles.com/forums/13-...olt-thread-sealant-controversy-revisited.html
In it, quote: "Permatex
592,
565, and
567 are all comparable products. I have a tube of 592 in the garage right now. I'd have no qualms about buying 565 or 567 next time.
The 80632 is crap in a can. Worthless. Well, not quite. I've painted steel shim head gaskets with it and it worked pretty well in that application."
So here's my deal - I'm not the biggest fan of crap...whether it be in a bucket, tube, Dixie cup, or can.
I know that's not about our Buicks, but I also read the Sticky on head gaskets install, and there was no mention of anyone using the stuff I bought. So I don't think I want to be the guinea pig on this stuff (though it is a thread sealant with Teflon).
What's interesting, is...the reason I bought this stuff, is the employee at Advance Auto said that the 80632 cross referenced to the 565. I think he was on the pipito, however. So, I returned it. They didn't have 56521, but the closest O'Reilly's did.
Note: The above quote states that 592 and 565 are comparable. Advance had 592, but it was in a very small tube. 0.2 ounces, I think. As you can see from the photo, the 565 comes in a much bigger tube (1.7 oz). This tells me it's intended to be used liberally, and thus...seal up larger gaps. Just seams more appropriate for our application vs. the 592. Point being...I'm glad I didn't choose that one, though the chevelle forum spoke of it as comparable.