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  1. #1
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    Need help with OMC V4 head bolt size.

    Does anyone know the size and pitch of the head bolts SCREW, Cylinder head

    0307267

    Plus the bolts that attach the mid to the power head,

    SCREW, Exhaust housing

    0908931

    Also need the same for the water jacket cover
    SCREW, Cyl. head cover
    0306409


    Thanks folks
    If anyone has all the bolt dimensions that would be awesome

    Cheers Andy

    I love my Bikini

  2. #2
    Join Date
    Jun 2007
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    Singapore/Melbourne/Italy
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    head bolts are 5/16 unc

  3. Thanks spybot thanked for this post
  4. #3
    Join Date
    May 2001
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    Hickory NC
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    powerhead to adapter are 5/16 x 18, Water jacket 1/4 X 20

  5. Thanks spybot thanked for this post

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