20-2064M KPMI, exhaust valve guide. Manganese. +.004"

For Shovelhead owners working on 1979 to 1984 80-inch (1340cc) engines, this .004-inch oversize exhaust valve guide provides the extra material needed to secure a tight fit in worn cylinder heads. Manufactured by Kibblewhite from high-quality manganese bronze, this guide offers superior heat dissipation and lubricity compared to standard cast iron. While it is more affordable and slightly softer than C630 bearing bronze, it is exceptionally easy to work with. You can quickly ream it to the required clearance and finish it with a ball hone and a standard drill. It is an essential component for any mechanic looking to save a set of vintage heads with oversized bores.