20-20759 KPMI, intake/exhaust valve guide. Cast iron. +.010"

For 45-inch Flathead cylinders with significant wear, this +.010" oversize Kibblewhite valve guide provides the necessary material to save the casting. Cast iron construction ensures these guides deliver maximum durability and heat resistance, which is critical for the longevity of these classic side-valve engines. This guide is sold individually and fits 1929 to 1973 45-inch (750cc) Flathead models. By starting with standard dimensions of 0.5647" O.D. and 0.3395" I.D., this +.010" version gives you plenty of room to bore the cylinders for a fresh, secure guide installation, keeping your vintage Harley on the road for years to come.