This GSC Power Division manganese bronze exhaust valve guide is listed for Honda B16A, B17A and B18C VTEC engines with a +0.001 inch outer-diameter oversize and supplied as a single unit. The description provides the engine family and oversize sizing for direct replacement in the specified VTEC applications.
GSC P-D Honda B16A/B17A/B18C VTEC Manganese Bronze Exhaust Valve Guide +.001in OD - Single