Whenever applying a lubricant or anti-seize to a bolt or stud that's going
into a blind hole (no opening on the other side (ie; like an exhaust bolt
into a cylinder head casting), don't apply too much.  Excessive fluid can't
escape when the bolt is tightened.  As you continue to tighten the bolt, the
trapped fluid cannot compress, so it 'hydraulics' and will crack the
casting.  Just re-iterating this simple but important principle for the
unknowing...

Mike B.

>I have decided on M8 1.25 8.8 bolts. I am however going to put high temp
>anti-seize on them before they go in.