71025-8 KPMI, custom valve guide seals. Viton

Kibblewhite Viton valve guide seals are the preferred choice for many mechanics due to their excellent sealing properties and flexibility. These seals feature a solid Viton rubber body with a metal jacket and a choker spring for maximum retention. This set is specifically sized for 6mm valve stems and 0.435-inch valve guides, making them ideal for modern custom applications. Viton is known for its ability to withstand high temperatures while maintaining a tight seal against the valve stem. These seals are easy to install and provide a long service life compared to standard rubber alternatives. Whether you are refreshing a late-model head or building something custom, these seals offer the reliability you expect from Kibblewhite. They are sold as a set of eight.