cam casting numbers

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  • bikerphil
    Master of XSology
    • Jan 2008
    • 8634
    • South Flori-DUH
    #1

    cam casting numbers

    Does anyone know what year these cams are out of?

    Intake- X4

    Exhaust- 8B

    These are the only numbers on the cams. I want to put them in a '79 motor I'm building.
    2H7 (79) owned since '89
    3H3 owned since '06

    "If it ain't broke, modify it"

    ☮
    Tags: None
    • 81xsproject
      XS-XJ Super Guru
      • Nov 2004
      • 3185
      • Fortuna, CA
      #2
      I just went out an looked over my set of '79 cams and other than IN and EX, one is stamped (NOT CAST, with your typical metal letter/number stamps) "47" and the other "4J"...?
      '81 XS1100 SH

      Melted to the ground during The Valley Fire

      Sep. 12th 2015

      RIP

        Comment

        • bikerphil
          Master of XSology
          • Jan 2008
          • 8634
          • South Flori-DUH
          #3
          Yeah, my numbers are stamped too. Guess i'll just measure them, see if they are '79 specs.
          2H7 (79) owned since '89
          3H3 owned since '06

          "If it ain't broke, modify it"

          ☮

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