freeze plugs

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I usually use Indian Head gasket sealer, though it is not necessary. I only use the minutest amount, enough to help the plug slip in a bit easier. It is supposed to be for low temp applications but is good up to 350 degrees. Comes in a little brown bottle with brush on applicator. Made by Permatex: Indian Head Gasket Sealant
Again, you do not need it but an old timer I know swears by using a little dab and I have never encountered problems using it.

Make sure that the mating surfaces are clean.

Russ
 
Anytime. Another option would be expandable freeze plugs. You just insert them in the hole and rotate the bolt until they are snug. I don't think that I would use these in any high performance engines though.

Russ
 
A thin bead of permatex #2, similar to the indian head sealant. It helps them to seal and slip in a little easier.
 
i personaly have NOT ben happy with the expandable freeze plugs the times i have used them. the first time i had one blow out on the race track and 2 people hit the wall in my water.. second time it seems to have sealed , but a pain to get in straight and tight. they are good for a quick fix but i would never sugest them over brass or steel.
 
I agree Chris. As I said above, I would not use them in any high performance applications nor in any engine that's going to be seeing some racing. Still, they are great in a pinch and I always try to keep at least one in the tool kit in my car.

Russ
 
Go with the Brass Freezeplugs, as they are more forgiving. Plus the added corrosion resistance. Like they said just a little film of permatex around the sealing surface, and make sure there is no paint on the sealing surface or rust.
 
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