Bryan,
Presumably you are referring to a 216/235/261?
The studs on those engines are screwed in.
Maybe someone who is good with a torch will post an response describing how to heat the stud/manifold before trying to remove the stud.
- If you are very lucky, you will be able to unscrew the studs.
- More commonly, the stud will break and you will have to remove the broken piece.
- If you are very unlucky, you will break the manifold around the stud when you try to remove the stud. You'll still have to remove the broken piece and you will have to repair the break (if possible, depending on the break).
All three of the above have happened to me. The middle possibility is the most common.
Tim
