i am removing my gsr head and i used a screw driver to try to pry it up, i used it at each corner of the head on top of the head gasket, not under, i want to know if i have damage any thing, like the piston, or its hole or the block or anything that might cause fluids to leak into the piston chamber. thanks.

 

I doubt it. Check the head surface and the block to make sure.