Guide Vlv Evo/Tc+.001 Mag 20-2131M

Shouldered Manganese Bronze Valve Guide

Precision-machined

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

Shouldered for a positive stop for easy installation and best performance

Made in the USA

Accepts up to 0.600" lift cams. Use OEM style 0.420" valve seals.