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Technical Early 327 Harmonic Balancer

Discussion in 'The Hokey Ass Message Board' started by flt-blk, Oct 24, 2017.

  1. I have a 64 327 and need to replace the Harmonic Balancer. I am having trouble finding the correct one. Mine has the timing mark in line with the keyway.

    I understand the timing marks changed in 1969 to be 10deg off the keyway and there is a different timing cover and pointer used with those. I do not want to change the timing cover

    I ordered a replacement balancer from Summit, PN# PIO-872001 and it has the timing marks offset. The tech guy at Summit claims all aftermarket balancers are offset and they don't carry any of the old style ones.

    Does anybody have a source or a part number for the correct Balancer?
     
  2. deathrowdave
    Joined: May 27, 2014
    Posts: 3,549

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    Easy to remark replacement balancer ? That would be my answer .


    Sent from my iPhone using H.A.M.B.
     
  3. That is plan B,
    I was hoping to get one with the timing marks etched on it, not the timing tape that looks stupid and eventually falls off anyway.
     
  4. Deuces
    Joined: Nov 3, 2009
    Posts: 23,913

    Deuces

    I'd go with the 302 version....
    But even those are hard to find....
    I believe the 327/365 and the 302/290 were identical....
    I could be wrong...:confused:
     

  5. squirrel
    Joined: Sep 23, 2004
    Posts: 56,077

    squirrel
    Member

    There are places that rebuild old dampers, but you didn't say what's wrong with yours.
     
  6. Mine is just old and coming apart. it is pinned so I doubt it has rotated causing the timing problems I was chasing, but the rubber is cracking and chunks have come out. I will take a picture of it tonight, it is sitting on my coffee table.
    Edit, I did have some pictures in my phone of the old and the new.
    327Balancer1.JPG 327Balancer2.JPG
     
    Last edited: Oct 24, 2017
  7. Fordors
    Joined: Sep 22, 2016
    Posts: 5,410

    Fordors
    Member

    Why not just use the new balancer, check and verify TDC and using a three cornered file or even a fine tooth hack saw blade cut a new, exact mark where you require it?
     
  8. There are a lot of ways I could modify the new part, but I have time so I would rather get the correct one.
    It can't be that hard to find a pre-69 balancer for an internally balanced SBC, I just don't know where to look.
     
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 56,077

    squirrel
    Member

  10. Yikes, 200 for a rebuilt balancer.
    It is for the ISO so I am trying to stay stock for a Corvette 300hp 327,
     
  11. squirrel
    Joined: Sep 23, 2004
    Posts: 56,077

    squirrel
    Member

    heh...yeah, that's exactly what I figured. It's not a cheap deal, restoring a Vette engine.
     
  12. Fordors
    Joined: Sep 22, 2016
    Posts: 5,410

    Fordors
    Member

    I’m pretty sure the balancer you show never came on a 300 horse 327, in fact not even a 2 barrel 210 horse 327. That looks like an early 283 damper.
     
  13. Deuces
    Joined: Nov 3, 2009
    Posts: 23,913

    Deuces

    That's what I was thinkin'.......
     
  14. jchav62
    Joined: Jan 30, 2007
    Posts: 1,932

    jchav62
    Member

    My old 327 had that same dampener. (like the one on the right.) It fell off at some point. Now the crank is drilled and tapped to put a bolt. I would highly recommend that to anyone.
     
  15. Oilguy
    Joined: Jun 28, 2011
    Posts: 663

    Oilguy
    Member

    My 300HP . Chicago Corvette has dampeners for $158. DSC07970.JPG
     
  16. squirrel
    Joined: Sep 23, 2004
    Posts: 56,077

    squirrel
    Member

    Early 327s had that small damper. The early 283 damper didn't have the cast ring, it had a stamped sheet metal ring.
     
  17. Looks like Chicago Corvette might be the way to go, and they are local for me, only an hour away and open on Sat.
    Thank You
     
  18. sawbuck
    Joined: Oct 14, 2006
    Posts: 1,909

    sawbuck
    Member
    from 06492 ct

    x2 drill and tap
     
  19. rails32
    Joined: Oct 29, 2008
    Posts: 110

    rails32
    Member

    Try Corvette America ,Corvette Central or Paragon they are big 3 for parts. They all sell balancers price shop them. Stay away from Summit if you are looking for things like stock balancers and timing covers.They only race type parts.
     
  20. Dennis D
    Joined: May 2, 2009
    Posts: 851

    Dennis D
    Member

    Long Island Corvette Supply is another source. D
     
  21. Kan Kustom
    Joined: Jul 20, 2009
    Posts: 2,741

    Kan Kustom
    Member

    Never knew there was a difference.Now I need to check and see which one I have.
     
  22. Mine was drilled and tapped, with a coarse thread at some point, not optimal but with some lock tite it will hold fine.
     
  23. southcross2631
    Joined: Jan 20, 2013
    Posts: 4,413

    southcross2631
    Member

    My buddy was running a 327 in his front engine rail with no bolt. It came off hit the pavement and bounced up took out one of his frame rails. Good thing he had two rails.
     

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