| Im about to rebuild my motor due to oil starvation, cooked a bearing. I currently have 13K miles on NPR rings but I'd like something better. Is it ok to use 87.5mm rings on a 87mm pistion if i file to fit? I didnt file to fit the first time bacuse the clearance was too big. I want to fix this issue, what rings should I use? Any thoughs od Perfect Circle?
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