cam diameter question

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  • racinjason29
    Senior Member
    • Feb 2009
    • 470

    #1

    cam diameter question

    I have a comp cam that is sbc, ( i called comp cams), but the diameter is too big for a stock sbc bearing. Is this a 50 or 55mm cam?
  • SLM98
    Senior Member
    • Sep 2009
    • 407

    #2
    Could also be a 1.875 journal cam.50MM is 1.969 inches.55MM is 2.165 inches, measure the cam main journals. Stock cam is 1.868, I had Comp grind a 1.875 cam to 1.868 so that can be done.

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    • racinjason29
      Senior Member
      • Feb 2009
      • 470

      #3
      What do they normally charge to do that if you dont mind me asking?

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      • SLM98
        Senior Member
        • Sep 2009
        • 407

        #4
        Don't remember think it was around $60.00.If you got someone who is good on a crank grinder they could do it too. Just have to go slow and not push, if they had a couple steadyrests that would help too.

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