Ive searched and i cant find any usefull info on this topic, im currently running type r pistons on itr valves and gsr cams, now if i put the gsr pistons back in would there be an clearance issues?

 

If you think about your question for a minute, you would be running gsr pistons with gsr cams (valves make no difference unless you were running oversize).....so your car would be operating at stock specs....

If they worked with type R pistons which have a much higher dome/compression height, then why would they have clearance issues on something that gives you even more clearance?