
KIBBLEWHITE valve guide, manufacturer reference 60-60520. Designed for Cross competition and demanding engines, this C630 bronze guide (nickel-aluminium copper-based alloy) offers a robust construction: approximately 80% copper and 5% nickel for superior wear resistance and high thermal conductivity. Made in the USA, it features profiles designed to minimise the impact on airflow while maintaining critical thickness in high-temperature areas to preserve seat durability and valve behaviour.
Ideal for restoring or optimising valve operation and the guiding precision of valve stems on Cross cylinders. Replaces original guides for a reliable fit without compromising gas flow. Common compatibilities: SUZUKI RM-Z 250 (RJ42A/C 2015, RJ41A/C 2009, RJ41A 2007).