KIBBLEWHITE Manganese Valve Guide — Oversize (+0.004"), 0.3760" ID – 48-69, 72 Big Twin

The manganese bronze valve guide is precision-machined for reliable valve operation and consistent fit. 🔧

Manganese bronze is softer than nickel aluminum bronze and offers excellent heat conductivity, which helps promote long valve life. 🔥

Guides can be easily reamed with a battery-operated or electric drill and finished with a high-quality ball hone, eliminating the need for expensive honing equipment required for nickel bronze guides.

They are machined to accept OEM and aftermarket seals and require the use of either Viton® or teflon valve seals. No machining required.

Made in the USA. 🇺🇸