Kibblewhite
KPMI, exhaust valve guide Manganese Std
KPMI, exhaust valve guide Manganese Std
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Manganese bronze. Standard size: 0.4750" O.D. (12.07mm); .2342" I.D. (5.95mm); 1.655" OAL (42.04mm). Manganese bronze is softer and less durable then C630 bearing bronze but will allow a lower cost and reaming to size is quick and easy and finish can be done with simple tools like a ball hone and an electric drill. Rapid heat transfer and good lubricity. Note: Special Manganese reamers & hones are available.
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