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Discussion Starter · #1 ·
I need a valve spring seat (pocket) cutter that will cut a 1.325" OD seat. The smallest I can find is one that cuts a 1.350" OD pocket. My valve springs are 1.310" OD and I would like about .007" - .010" clearance to limit spring movement (dancing) at high RPM. There are no spring cups that fit. Maybe some motorcycle valve spring seat cutters?

I heard a rumor that someone offers an adjustable seat cutter.
 
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