Cast Iron Valve Guides - Kpmi Exhaust Guide Cast +.001

Kpmi Exhaust Guide Cast +.001

• California Prop 65 Warning: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
• Material: Cast Iron
• Size: +.001"

The Kibblewhite KPMI Exhaust Valve Guide is precision-machined from cast iron for durability and high performance. Designed to be compatible with unleaded fuel, it accommodates any type of valve-stem material and supports the use of special valve guide seals (sold separately). Kibblewhite engineers its valve guides to minimize airflow disruption while maintaining critical cross-sectional thickness in high-temperature areas, ensuring both endurance and performance. The cast iron used is formulated exclusively for Kibblewhite, with carefully controlled levels of carbon, silicon, manganese, nickel, chromium, copper, and sulfur. This composition results in a highly pearlitic structure with dense, fine grains that enhance wear resistance. This specific valve guide has a +.001" sizing for precise fitment.