Kibblewhite Precision Guide Intake +0.010in

• Type: Valve Guide

The **Kibblewhite Precision Intake Valve Guide (+0.010")** is designed for high performance and durability. It features a streamlined profile to minimize airflow obstruction while maintaining critical cross-sectional thickness in high-temperature areas. In many cases, installing these guides alone can improve airflow. These guides incorporate a flange where applicable, ensuring correct seal-to-retainer clearance for aggressive cam profiles without requiring repeated measurements during installation. Where a flange isn't possible, a reduced diameter above the purchase area indicates the correct guide protrusion. Made from **C630 Racing Bronze**, which consists of **80% copper, 5% nickel, and 10% aluminum**, these guides offer excellent thermal conductivity, high resistance to wear, and reduced galling, allowing for tighter clearances for improved valve-to-seat sealing and oil control. The **Manganese Bronze** option provides a more cost-effective alternative with good anti-galling properties and increased thermal conductivity compared to iron guides. While not as hard as C630 bronze, manganese guides can be reamed and finished easily. Precision manufacturing ensures tight concentricity tolerances, maintaining optimal seat-to-guide geometry, reducing material removal during valve jobs, and ensuring consistent chamber volumes. A radius at the transition from the nose profile to the main body prevents galling during installation. Each kit includes two valve guides.