Kibblewhite Precision 20-2021M Manganese Bronze Intake Valve Guide (+.001)

Demon’s Part # 90000017105 Mfg. Part # 20-2021M


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Precision-machined guides. Manganese bronze guide material is softer than nickel aluminum bronze valve guides. Excellent heat conductivity which promotes long valve life. Material hardness helps support valve guide longevity. 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. Great choice for the home builder. Made in the USA Quantity: Pkg. of 1. Material: Manganese Bronze. Type: Intake. Outside Dia. : (G): 0.5660in. / +0.001in. A: 0.450in. B: 0.540in. C: 0.810in. D: 1.340in. E: 0.745in. F: 0.3745in.