Sealing head studs

[vl1500]

What is everyone using to seal head studs in the block to prevent leakage? Thanks....

[Scoobum]

Anything that says antifreeze resistant.

[vl1500]

Thanks for the reply.... I am trying to decide between the Permatex #2 non harding, Loctite 567, or the Ultra Black and was wondering who had the best results from which.

[Scoobum]

I just walk in and grab sealer that says antifreeze resistant. Stuff I used on this engine is black...not sure of the brand. Maybe Permatex?

[Scoobum]

Run a tap through the threads to clean 'em out.

[vl1500]

Thanks.....

[Forzfed]

Thanks for the reply.... I am trying to decide between the Permatex #2 non harding, Loctite 567, or the Ultra Black and was wondering who had the best results from which.

I use the Loctite 567, it has always worked for me so I really didn't need to try anything else.  Can't comment on the Permatex because I've never used it.

[278CIKILLER]

The right stuff, you can't go wrong.

[278CIKILLER]

But what do i know...

[Forzfed]

The right stuff, you can't go wrong.

That I have used and it is amazing!

[vl1500]

Thanks for the reply.

[motorhead]

JB Weld.

[earlbrown]

Yamabond.


And a GM seal tab just for good measure since I run MLS head gaskets.

[vl1500]

Thanks once again guys!!

[TexasT]

I've always used this stuff. It doesn't harden so a retorque can happen anytime