20-2339C KPMI, exhaust valve guide. Cast iron. +.010"

If you are working on a 1957 to 1983 Sportster head that has seen better days, this +.010 inch oversize exhaust valve guide from Kibblewhite is the professional solution for oversized bores. Cast iron has been the engine building standard for over a century because it offers the best possible durability and wear resistance for high-mileage touring. This guide is designed to provide a secure press fit even in heads with significant wear. For reference, the standard non-oversize dimensions are 0.5650 inch outer diameter, 0.3085 inch inner diameter, and 1.77 inch overall length. Sold individually, these guides are a critical component for saving vintage Ironhead castings and ensuring a long-lasting, reliable valvetrain rebuild.