KIBBLEWHITE Valve Guide - Standard 40-40820

Valve guides are critical to engine longevity, directing oil flow and maintaining precise valve seating under extreme thermal stress. OEM guides wear quickly in high-performance or modified engines, leading to oil consumption, blow-by, and valve float. The KIBBLEWHITE Standard 40-40820 delivers superior heat dissipation and durability through advanced metallurgy, ensuring reliable valve control even in demanding race or street applications.

• Ampco-45 copper alloy
• 80% copper content
• 5% nickel reinforcement
• Superior heat conductivity
• Exceptional wear resistance
• Standard bore diameter
• Made in U.S.A.
• Professional-grade compound
• Direct OEM replacement