The GSC intake valve guide for Honda K20 and K24 VTEC engines is a manganese bronze replacement offered as a single unit with a +.003in oversize outer diameter. It is a direct-fit guide intended to maintain valve stem alignment and dependable valve travel during head rebuilds or repairs. The oversize option helps achieve a snug interference fit when the guide bores are machined slightly larger.
GSC P-D Honda K20/K24 VTEC Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single