Put the cylinder head, and cylinder head gasket back on the engine and put the washers on the stud bolts and put the nuts on the stud bolts, and cross torque them so they are all tight. Put on the intake manifold and intake manifold gasket,put the washers on the stud bolts and put the nuts on the stud bolts and tighten them, that is if this has been removed. Take PBlaster and spray it in the spark plug hole untill it is full, it will foam up, so let the foam die down so you can see how much liquid you have to make sure it is full and put the spark plug in the whole and tighten it after doing this. Spray PBlaster in the intake manifold untill it is full, use same method to make sure it is full like you did on the cylinder, then plug this off with something, maybe a cork or a stoper.Take the exhaust pipe off the muffler, make a mark where the spot is joined at so it put back together at the same spot when you are done. Put the gasket on the cylinder exhaust port and put on the exhaust pipe, the two washers, the two nuts, and tighten them down.Spray PBlaster in the exhaust pipe and make sure there is enough in there, but you will not have to get it full since you will let the engine soak in a position where the cylinder is pointing down, and plug the exhaust pipe with maybe cork or stoper. This soaking will take 3 weeks and at least once a week you need to check to see if the level of PBlaster needs to be refilled, it is best to check this daily. After 3 weeks get an old floor lamp that has the bulb that points up at the ceiling. This is the kind that has allumnum or maybe pot metal pieces that join the two or three metal tube together. Unscrew a section of this and leave on the allumnum or pot metal end and put that end in your cylinder after you take the head off. This lamp tube will be hit with a hammer to free your piston. You can use a hammer handle if you can find this floor light or anything else. That piston may have the rare L top piston ring and this procedure may help free it up if it is stuck on there.If it is stuck on there take the piston off the rod and put it in a small glass or metal jar or container with a lid to cover it after filling the jar or container with PBlaster and let it soak for 3 weeks, check the level of PBlaster every day to see if you need to add more PBlaster so it is kept full.