Kibblewhite Manganese Exhaust Valve Guide 0.5900" OD (20-30HSM)

• 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

NOTE: Requires the use of either rubber coated or teflon valve seals.

NOTE: No machining required.