Kibblewhite Cast Iron Intake Valve Guide +.001″ 20-2021C

Description

Kibblewhite cast iron valve guides are precision-machined for high performance and durability. Designed to minimize airflow disruption while maintaining critical cross-sectional thickness in high-temperature areas, these guides ensure endurance and reliability. They are compatible with no-lead fuel and work with any valve stem material. Kibblewhite uses a proprietary cast iron composition, incorporating elements like carbon, silicon, manganese, nickel, chromium, copper, and sulfur to create a highly pearlitic structure with dense fine grains, enhancing wear resistance. This intake guide features a +.001″ sizing adjustment for precise fitment.