KIBBLEWHITE Valve Guide - Big Twin 20-2036

Valve guides are the unsung foundation of reliable top-end performance. The KIBBLEWHITE 20-2036 is precision-machined from a nickel-bronze alloy that resists wear far longer than cast iron, ensuring consistent valve sealing and reduced blowby across countless heat cycles. If you're rebuilding a Big Twin engine and want guides that won't compromise longevity or performance, this U.S.-made component belongs in your build.

The composition—approximately 80% copper with 5% nickel—delivers superior heat conductivity away from the valve seat while maintaining dimensional stability under extreme operating temperatures. That thermal management directly translates to cooler running valves and a longer service life between rebuilds.

• Material: Nickel bronze alloy
• Nickel content: 5%
• Copper content: ~80%
• Application: Big Twin engines
• MPN: 20-2036
• Fuel compatibility: No-lead safe
• Valve stem material: Any type
• Special seals: Accepts aftermarket
• Finish: Precision-machined
• Origin: Made in U.S.A.