Guide Vlv 48-77Bt+.025Mag 20-20Hsm

Manganese Valve Guide

Precision-machined guides

Manganese bronze guide material is softer than nickel aluminum bronze valve guides

Excellent heat conductivity which promotes long valve life

Guides can be easily reamed with a battery-operated or electric drill and finished with a high-quality ball hone

Eliminates the need for expensive honing equipment that would be required for nickel bronze valve guides

Machined to accept OEM and aftermarket seals

Made in the USA

Requires the use of either Viton® or teflon valve seals. No machining required..