Solid Mechanical Roller Lifters
Any feedback regarding bushed rollers rather than needle bearing rollers? Seems that needle bearings, while small, create mayhem at 9200 rpm when they leave their home. Also, I suspect Jesel key ways are likely preferred, but any thoughts on favored non-keyed....Morel, Isky, Crower,... Coated? Any experienced or inexperienced input is appreciated.
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