Valve Guide - 0.5690" 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
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