The GSC Power Division stopper-style manganese bronze exhaust valve guide is listed for Honda K20 and K24 VTEC engines and supplied as a single unit with a +0.001 inch oversize outer diameter. The product entry describes the stopper style and oversize dimension, indicating a direct-fit replacement for the specified K-series applications.
GSC P-D Honda K20/K24 VTEC Exhaust Valve Guide Stopper Style +.001in Oversize OD - Single