I free'd a stuck piston, now what?

[chap52]

Cleaning off that old head gasket is not a problem. I use one of those cone shaped wire wheels on a cordless drill. Then the ol' shop vacuum to clean up the debris.
Then I would pull the piston and change the rings. It they look worn might be a great time to change them all while everything is so easy to access. I also use the Fel Pro gaskets with a light coating of grease on both surfaces as "tubman" suggested.