Manganese Valve Guide

Valve Guide - 0.5750" OD - Intake - Big Twin '48-'E79

• 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