20-2329C KPMI, intake valve guide. Cast iron. +.010"

For 1957 to 1983 Sportster engines that have seen significant service, a standard valve guide often won't provide the necessary press fit. This Kibblewhite intake valve guide features a +.010 inch oversize outer diameter, specifically designed to save cylinder heads with heavily worn or previously repaired guide bores. Manufactured from high-grade cast iron, it provides the wear resistance and longevity required for long-distance touring. For your setup calculations, the standard non-oversize dimensions are 0.5650 inch outer diameter, 0.3085 inch inner diameter, and 1.77 inch overall length. These guides are sold individually and represent the standard for durability in vintage Ironhead builds, ensuring your valvetrain remains stable and reliable for years to come.