I looked in my exhaust port to get a view of the piston and I have NO rings at all. I was wondering why it was slow so that will explain it. Im surprised i got to 20 without 'em well good thing is I got rings in the mail. No my question is when you put in rings is there anything special i should do or take into consideration? also do i have to use sealant on my engine or can i just put the new head gasket in and close it up?