cleaning carbon and burnt oil off pistons?

[quote=“Zer0DazE”"]

it took hours to get the rings out of the pistons… ugh
there is some nasty shit built up in the ring lands. whats the best way to clean them up?

[/quote]

If you can find the equipment, I remember back in the day using an air gun setup that used crushed up walnut shells as a blast agent. However, doing my best to stay away from rebuilds over the past 10 years or so, I can’t say if there’s a newer, better way.