The alignment pins are screwed in. Hit them with some penetrating oil a few times and allow them to soak for a day or so, then get out the vise-grips. If you have to use heat you will need to heat the head around the pin. Make a note that if you ever do this again to remove the exhaust manifold when the engine is hot, the bolts come out easier. wink


Fred
52 3600
69 C-10