Kibblewhite Precision Guide Exhaust +0.001

• Type: Valve Guide

The Kibblewhite Precision Exhaust Valve Guide (+0.001) is designed to enhance airflow and durability by minimizing obstruction in the airstream while maintaining critical thickness in high-temperature areas. Its precise construction ensures optimal valve-to-seat sealing and superior oil control. The guide is made from premium C630 racing bronze, which contains 80% copper, 5% nickel, and 10% aluminum, offering excellent thermal conductivity and resistance to wear, galling, and corrosion. Additionally, a manganese bronze option is available for budget-conscious builders, providing good thermal conductivity and ease of machining. The guide features a flange or diameter transition for correct installation height, saving time by eliminating repeated measurements. Its tight concentricity tolerances help maintain proper geometry between the valve seat and guide, leading to consistent chamber volumes and minimal material removal during valve jobs. A radius at the transition point prevents galling during installation. Each kit includes two valve guides unless otherwise specified.