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These oversize tappet pins allow the builder to limit tappet rotation in the lifter bore; excessive rotation allows the lifter to side-load and cause operational issues. Red Shift recommends between .002” – .004” of clearance. Oversized pins are available in +.002” and +.006” sizes.
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These oversize tappet pins allow the builder to limit tappet rotation in the lifter bore; excessive rotation allows the lifter to side-load and cause operational issues. Red Shift recommends between .002” – .004” of clearance. Oversized pins are available in +.002” and +.006” sizes.
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Larry Buie –
I use this pins all the time for proper clearance. They work!