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Manganese bronze is softer and less durable than C630 bearing bronze, but will allow for lower cost and reaming to size is quick and easy, and finishing can be done with simple tools such as a grinding ball and electric drill.
Fast heat transfer and good lubricity.
Note: Standard non-oversized dimensions (for reference only) are 0.6250" OD (15.88 mm); 0.3745" ID (9.51 mm); 1.91" OAL (48.51 mm).
Note: Special manganese reamers and dressers available.
Fits: > 79-84 80" (1340cc) Shovelhead (NU)
KPMI Exhaust Valve Guide. Manganese. +.002" For Harley-Davidson
20.95 €
Fast heat transfer and good lubricity.
Note: Standard non-oversized dimensions (for reference only) are 0.6250" OD (15.88 mm); 0.3745" ID (9.51 mm); 1.91" OAL (48.51 mm).
Note: Special manganese reamers and dressers available.
Fits: > 79-84 80" (1340cc) Shovelhead (NU)