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Max Bore size

Discussion in 'Motorcycle Tech Talk' started by wl_napier, Jul 14, 2008.

  1. wl_napier

    wl_napier New Member

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    Does anyone know how large the spigots of stock harley twin cam cases can be bored without causing oil leaks or other problems?
    Last edited: Jul 14, 2008
    wl_napier, Jul 14, 2008
    #1
  3. hotroadking

    hotroadking Super Moderator Staff Member

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    Are you talking about 88 cyl?

    Biggest I've seen are 95 inch

    There is a company that will go 98 but I think they press out the old liners and in some new ones.

    If it's a newer 96 you can go 103
    hotroadking, Jul 14, 2008
    #2

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