connecting rod direction

Discussion in 'Street/strip 400/430/455' started by Bryan Fant, Sep 21, 2011.

  1. Bryan Fant

    Bryan Fant Well-Known Member

    Does any body know the correct direction for the 455 factory conn rod.Had the machine shop replace the pistons and I CANNOT remember the correct direction.The rod bearing sits right on the edge of one side of the conn rod /or cap and has a 1/8 gap on the other side.Which one faces the outside of the journal and which one faces the inside to each other(the other conn rod on that journal).Thanks
     
  2. RG67BEAST

    RG67BEAST Platinum Level Contributor

    The dimples face each other. The dimples on 1,3,5,7 face toward the back. 2,4,6,8 toward the front. If you look on the caps there is a dimple on those as well. The pistons only go one way as well. They will have a notch or an arrow indicating front.
    If the pistons were installed correctly 4 pistons will have the dimples opposite of the notch or arrow for 1,3,5,7 and the ones the same side for 2,4,6,8.
    Here's a pic of the dimples on the rod.
    Ray
     

    Attached Files:

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  3. Bryan Fant

    Bryan Fant Well-Known Member

    Thanks,ill check for the dimples.
     
  4. GSXMEN

    GSXMEN Got Jesus?

    As a general rule of thumb, look at the chamfer on edge of the rods. Typically, only one side has a bigger chamfer on it - to clear the radius on the crank journal outer edge.

    [​IMG]
     
  5. TheSilverBuick

    TheSilverBuick In the Middle of No Where

    Oh, learn something new every day. Thanks for the picture.
     
  6. gmcgruther

    gmcgruther Well-Known Member

    Usually the tangs that hold the bearing in place face's the outside of the block.
     
  7. tommieboy

    tommieboy Well-Known Member

    I hope the machine shop was aware of the orientation of these rods (dimples facing each other) prior to replacing the pistons. Like Ray said in the above post; it's not just the dimples that matter; it's also the way the piston is installed on these rods.
     
  8. Michael Evans

    Michael Evans a new project

    And that champer goes the the outside of the journal towards the crank
     

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