The point that was made to me was not about sealing, but shrinkage.
The compressed head gaskets/seal-whatever, compresses slightly over
time, thus changing the torque on the bolts.
Roland
>
> >BTW, I believe that Felpro claims that no bolt re-torquing
> >after X number of initial miles is required if you use their
> >head gaskets. I've have heard from some pretty knowledgeable
> >people that this is bunk.
>
> Maybe they haven't read the full text. The Felpro instructions were quite
> clear that you had to use their fancy head gasket "form a gasket" too.
> Thus, they are basically bonding the block to the gasket and then the
> gasket to the head. I can see how this glue seal would have less of a need
> of retorquing once enough mileage has settled everything down.
>
> FWIW, I don't have a Felpro head gasket or sealant. I did however spray
> the head gasket with silver paint before assembly.
>
> Jay
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