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56 Dodge 230 L6 standard rod/main/bore diam?

Discussion in 'The Hokey Ass Message Board' started by garvinzoom, Jan 16, 2013.

  1. garvinzoom
    Joined: Sep 21, 2007
    Posts: 1,169

    garvinzoom
    Member

    Hey guys, working on the engine out of a 56 Powerwagon at work and I am trying to determine the factory size of the main journals and rod throws and cylinder bore. Engine has a rebuild tag with oversize numbers on it but want to verify before ordering the bearings/rings.
    This is something I am involved with at work, pretty interesting truck. Started life as a forestry truck and has a supposed "factory" swivel in the frame that lets it articulate between the cab and bed. If original supposed to be one of fourty six made in 56.

    Thanks!
     
  2. garvinzoom
    Joined: Sep 21, 2007
    Posts: 1,169

    garvinzoom
    Member

    Okay, found the cylinder bore is 3.25 factory in the manual but it does not seem clear to me what the other specs should be.
     
  3. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,220

    sunbeam
    Member

    From my motors manual 1956 230 had 2.25 rods and 2.5 mains but 1955 230 had 2.062 rods.
     
  4. BOBCRMAN
    Joined: Nov 10, 2005
    Posts: 846

    BOBCRMAN
    Member
    from Holly

    Clevite bearing spec book. rods 2.061-2.062
    mains 2.499-2.500

    rod torque spec 3/8 bolt-45-50 lb.
    7/16 bolt 50-75 lb.
    mains 80-85 lb.
     

  5. garvinzoom
    Joined: Sep 21, 2007
    Posts: 1,169

    garvinzoom
    Member

    Thank you both very much!
     

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