Kibblewhite Precision Guide In/Exh Std

• Type: Valve Guide

The Kibblewhite Precision Valve Guide is engineered for optimal airflow and durability in high-temperature environments. Its streamlined profile enhances airflow, often improving performance without additional modifications. Designed with precise tolerances, it ensures proper seat-to-guide alignment, reducing material removal and maintaining consistent chamber volumes during valve jobs. Made from premium C630 Racing Bronze and Manganese Bronze, these guides offer excellent thermal conductivity and resistance to galling, wear, and corrosion. The C630 Racing Bronze contains 80% copper, providing superior heat dissipation and allowing for tighter clearances for improved valve-to-seat sealing and oil control. The Manganese Bronze variant, with 60% copper content, is more cost-effective while maintaining good anti-galling properties. Installation is simplified with built-in design features, such as a flange or diameter reduction to ensure correct protrusion without repeated measurements. These guides are particularly well-suited for aluminum cylinder heads and modern performance fuels. Each kit includes two valve guides unless otherwise specified.