Harmonic balancer indentification help 440 1970

Engine, Trans & Driveline

  1. Loka

    Loka New Member

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    Hello Guys, on my 1970 440 CID Chrysler engine, I have this harmonic balancer. Can anyone identify this harmonic balancer? I do not know if this is the correct balancer for my engine.
    I have counterweights on my TC. Thanks in advance for any help

    IMG_9930.jpg IMG_9931.jpg
     
  2. 493 Mike

    493 Mike FBBO Gold Member FBBO Gold Member

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    You do not have a 1970 engine. It is a cast crank motor. Newer than 1970.
    Mike
     
  3. Big Bad Dad

    Big Bad Dad Well-Known Member

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    Looks like a later cast crank balancer to me also. Maybe the crank was swapped in the engine? Might need to pull the pan and check the crank to see what you have.
     
  4. moparedtn

    moparedtn Ed on the Ridge FBBO Gold Member

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    Ok, this will be maybe a good teaching moment for me as well here...
    Don't the cast crank balancers have something like "USE WITH CAST CRANK ONLY" or some such stamped
    right into the inner part of the balancers like the OP's?
    Further, are those really fat balancers also for cast cranks?
    I think I have the same balancer as the OP:
    engine on stand 1.jpg

    This engine I have in Fred is a 1972 and I can't tell a cast crank from a forged one...
    Can you tell what type of crank it is just from seeing the flange on the rear of it?
    engine on pallet 3.jpg

    Sorry to hijack your thread Loka, but this is something I've asked a few times on here in the past
    and it's the same question you're asking I think.
     
  5. 1968rt

    1968rt Well-Known Member

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    Looks like a 72 balancer 3614372. I think it was used with forged crank motors with 4 speeds. this is from 440 source: Shown above is damper #3512017, commonly known as a "six-pack" damper. This damper can be easily identified by a small .210" thousandths thick elliptical weight attached to the center hub. This version was used in '70 and '71 and has the offset pulley bolt pattern. Be careful not to confuse it with 3614372, which was used only in '72 and looks similar except for having a symmetrical pulley bolt pattern. The weight on the 3614372 may be slightly thicker at .255", but we have not been able to verify this.
     
    Last edited: Mar 16, 2021
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    • moparedtn

      moparedtn Ed on the Ridge FBBO Gold Member

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      Here's the link to all that:
      http://www.440source.com/dampers.htm
       
    • 440Coronet500

      440Coronet500 Well-Known Member

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      I believe that damper was used on the 70 440-6 pack engines with the HD rods. 440'
       
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      • PurpleBeeper

        PurpleBeeper Well-Known Member

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        Geez....if it's just an inch thick, I think it's a "six pack" (aka big rod 440) balancer. The cast crank ones are twice as thick
         
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        • MCODECUDA

          MCODECUDA Well-Known Member

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          In 1970 the 440 HP engines used the 6 PAC crank, rods and balancer.
           
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          • Sixpaksteve

            Sixpaksteve FBBO Gold Member FBBO Gold Member

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          • moparmarks

            moparmarks FBBO Gold Member FBBO Gold Member

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            That is a 70-71 440 HP balancer also known as a 6-pack balancer. That would be correct for a 70 440HP motor.
             
          • moparmarks

            moparmarks FBBO Gold Member FBBO Gold Member

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            Ed yours is a forged crank 440 without the 6-pack rods. Different than what the OP has.
             
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            • beanhead

              beanhead Well-Known Member

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              I pulled a 'virgin' 440 from an RV. '78 block. Stamped for cast crank, cast crank balancer, LY rods, and........it had a forged crank. Everything about the engine pointed to never being apart, right down to the bolts and gaskets. A few much more experienced Mopar motorheads agreed. It was kinda like an archaeological dig for car guys. Every measurement matched the original factory specs. So.....as we all know never say never when it comes to Chrysler Corp!

              I'm with Purple and Ed. You can't really see it in the bottom pic but it said 'cast crankshaft only' or something like that.
              The OP's looks like a 6-barrel balancer. I'm not arguing that point though as I could be wrong.

              Here is that cast-crank balancer:
              20200709_153003.jpg

              20200709_153031.jpg

              Were cast-crank balancers different on cars and RV's? I dunno...
               
              Last edited: Mar 16, 2021
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              • beanhead

                beanhead Well-Known Member

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                Pictures of the pad stampings, and the casting numbers/dates would be great..
                 
              • 1 Wild R/T

                1 Wild R/T FBBO Gold Member FBBO Gold Member

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                • moparedtn

                  moparedtn Ed on the Ridge FBBO Gold Member

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                  Yep, you can see it when blown up:
                  CAST.png
                   
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                  • moparedtn

                    moparedtn Ed on the Ridge FBBO Gold Member

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                    Thank you! Some of 'em were makin' me nervous up there... :)

                    By the way, is it possible to install a cast crank balancer onto a forged crank and/or vice versa?
                     
                  • moparmarks

                    moparmarks FBBO Gold Member FBBO Gold Member

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                    Yep. The snouts are the same.
                     
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