What is a good thread sealer for head studs. Mine pass thrugh into the waterjacks.

I use Permatex aviation cement. The brown stuff that sticks to everything when you are working with it. Nasty stuff, but it works.

I also like the permatex #2 sealer as well. Both do good jobs.

Ken,
I use Permatex White Teflon, but have also used the #2 with no problems in the past. One thing that I found with studs is that they seem to seal better if you brush a fair amount of whatever sealer you are using into the hole in the block along with putting it on the threads of the stud. I have yet to figure out why, but for some reason compared to bolts, a lot of the sealer seems to get wiped off the stud as you thread it into the hole.

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

DITTO .

I've used permatex high temp thread sealant and the ARP thread sealant. If you have ARP studs, then get their sealant and follow their torque recommendations.

http://store.summitracing.com/partde...5&autoview=sku

I've always used Permatex #2 and have never had a leak.

Can teflon tape be used along with the brush on type of teflon.

I was told to use blue loctite and plenty of it, any ideas on this as a head stud sealer?

ARP thread sealer works well.