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This GSC exhaust valve guide for the Honda K20C1 CTR is a single oversize guide with a +0.003" outer diameter, intended to restore proper valve-to-guide clearance when the standard guide bore has been reamed or worn. Sold as one guide for use in head service and rebuild operations on compatible K20C1 CTR cylinder heads.
GSC Honda K20C1 CTR Exhaust Valve Guide +.003in OD - Single
