This GSC Power Division manganese bronze intake/exhaust valve guide is listed for the Honda D16 engine and supplied as a single replacement with a +0.001 inch oversize outer diameter. The product description specifies the D16 application and oversize sizing, supporting direct replacement selection for that engine family.
GSC P-D Honda D16 Manganese Bronze Intake/Exhaust Valve Guide +.001in Oversize OD - Single