Kibblewhite Precision Guide In/Exh +0.001

• Type: Valve Guide

The Kibblewhite Precision Valve Guide (In/Exh +0.001) is designed to optimize airflow while maintaining durability in high-temperature areas. Its streamlined profile enhances performance, and in many cases, simply installing the guides improves airflow without additional modifications. A built-in flange ensures proper seal-to-retainer clearance for aggressive cam profiles, eliminating the need for multiple measurements during installation. These guides are made from high-quality materials, including C630 Racing Bronze, which contains 80% copper, 5% nickel, and 10% aluminum, offering excellent thermal conductivity and resistance to galling. Alternatively, the C67410 Manganese Bronze option provides good anti-galling properties and increased thermal conductivity over iron guides. The high nickel content improves wear and corrosion resistance, especially important with modern fuels. Designed to maintain precise concentricity tolerances, these guides help ensure minimal material removal during valve jobs, leading to consistent chamber volumes and better valve-to-seat sealing. A radius at the transition point prevents galling during installation. Each kit includes two valve guides unless otherwise noted.