Kibblewhite KPMI, exhaust valve guide. Manganese. +.001″

Description

Kibblewhite KPMI, exhaust valve guide. Manganese. +.001″

79-84 80″ (1340cc) Shovelhead (NU)

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: Standard non-oversize dimensions (for reference only) are 0.6250″ O.D. (15.88mm); 0.3745″ ID (9.51mm); 1.91″ OAL (48.51mm). Note: Special Manganese reamers & hones are available.

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