20-2061M KPMI, exhaust valve guide. Manganese. +.001"

When you are cleaning up the heads on a 1979 to 1984 80-inch (1340cc) Shovelhead and find the guide bores are slightly worn, this .001-inch oversize manganese bronze exhaust guide from Kibblewhite is the perfect fix. Manganese bronze provides excellent heat dissipation and natural lubricity, ensuring your valves run cool and smooth. This guide is designed for quick and easy sizing, allowing a mechanic to ream and finish the bore with basic tools like a ball hone. It is a cost-effective alternative to harder bronze alloys while still providing the precision and performance required for a vintage Harley-Davidson top-end overhaul.