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Upper and Lower crankcase

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    Upper and Lower crankcase

    I have three engines and all have the same letters stamped on the top crankcases (BBBBB). Will any of the lower crankcase be okay to use? Because they all have the same bearing set, are they interchangeable ? The reason is one of the lower crankcase is in better condition than the others. I want to use the best looking bottom case. I am replacing all the bearings as well.
    Thanks.

    Will

    #2
    these are machined sets.
    like the main caps on a car engine.
    you can not mix and match.
    they must be a "matched" set.

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      #3
      bead blast the case halves and then repaint them..since its already apart that should take only few more hous.
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

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