The Supertech Honda B/H Series exhaust valve guide set is specified for 6.0mm stems and supplied as a set of 8. These manganese bronze exhaust guides are intended to replace worn guides in Honda B- and H-series engines where 6.0mm exhaust stems are used, restoring proper stem fitment and aiding valve retention during head service.
Supertech Honda B/H Series 6.0mm Stem Manganese Bronze Exhaust Valve Guide - Set of 8