Today I began working on replacing the = head gasket on the right side of my engine. Only problem is, the piston sleeves are = stuck to the head. I don't want to pull the head off with the sleeves attached, = per Boston Bob's directions....

So, what to do? I can see them through = the gap between the block and head and they look kinda rusty. Am I outta luck? = Can I use some kind of chem to break it free?