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Technical Chevy 327 crankshaft question can not find a flywheel that fits! HELP!!!!

Discussion in 'Traditional Hot Rods' started by Bryan Andrews, Jun 13, 2021.

  1. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,134

    Truckedup
    Member

  2. saltflats
    Joined: Aug 14, 2007
    Posts: 10,843

    saltflats
    Member
    from Missouri

    I have one of those flywheels GM number 3856579 date code B284
     
  3. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 8,839

    mgtstumpy
    Member

    Look on the flywheel for a number or casting and contact the manufacturer for application, WOHLERT DE MEXICO (Gear Manufacturing for Flywheel Assy)
    SBC crank flanges.png
    Screenshot 2021-06-15 at 09-05-10 Photobucket crankABC jpg.png

     
    Last edited: Jun 14, 2021
  4. B.A.KING
    Joined: Apr 6, 2005
    Posts: 3,761

    B.A.KING
    Member

    The fly wheel looks like one we used to require for our round trackers. We called it a L-88 flywheel. Not sure if thats what it was, but it was so everyone could go get one at dealership.Not some super duper light weight job. Any results yet on the problem?
     
    Deuces likes this.
  5. 1Nimrod
    Joined: Dec 11, 2018
    Posts: 454

    1Nimrod
    Member

    Chevy II's don't look any different than my C10's.

    1Nimrod IMG_20210518_161545008_HDR.jpg IMG_20210518_161639397_HDR.jpg
     
    Deuces likes this.
  6. Fordors
    Joined: Sep 22, 2016
    Posts: 3,719

    Fordors
    Member

    Yes, that was the L-88 15 pound flywheel, they were cast in nodular iron and were safer than the typical grey iron flywheel. I would imagine the Wohlert made in Mexico flywheel might only be grey iron.
     
  7. I have a Story when I had a Shop in Tuscon about 35 years ago
    A guy came in with a Chevy for me to Fix , I told him the Water Pump was Bad
    so I ordere'd one from my Parts House, when I went to put it on
    It would Not Fit every Hole was Slighty off so I called the parts Supply
    And they sent me Another one & The Same Problem.!
    Finaly A old timer told me That the problem was the Engine was a
    MEXICAN one which was different than the American one.!

    Just my 3.5 cents

    Live Learn & Die a Fool
     
    Deuces likes this.
  8. 26Troadster
    Joined: Nov 20, 2010
    Posts: 628

    26Troadster
    Member
    from Texas

    never had a problem out of a target master (mexican) motor when doing swaps, i guess i was lucky.
     
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  9. One and done? New member, post a question and a couple of updates, then vaporized. Hasn't been seen since.
     
    Last edited: Jun 17, 2021
    chopped and kevinrevin like this.
  10. kevinrevin
    Joined: Jul 1, 2018
    Posts: 112

    kevinrevin
    Member
    from East Texas

    So, did you get it running? What was the solution to your problem?
     
    Deuces likes this.
  11. KenC
    Joined: Sep 14, 2006
    Posts: 616

    KenC
    Member

    Probably lined up the dowel pin hole and found that it fits fine. But, he's embarrassed and doesn't want to post that.

    He shouldn't be though, we've all been there, or very similar places with unfamiliar parts.
     
  12. chopped
    Joined: Dec 9, 2004
    Posts: 2,063

    chopped
    Member

    Does not play well with others? Not on all week.
     
    stillrunners and Deuces like this.
  13. 6sally6
    Joined: Feb 16, 2014
    Posts: 1,586

    6sally6
    Member

    Prolly a kid! (acts like a millieniel anyway)
    6sally6
     
    '34 Ratrod and Deuces like this.
  14. Bryan Andrews
    Joined: Jun 13, 2021
    Posts: 7

    Bryan Andrews

    So update. Got the old flywheel back and here is a picture of the flange without it being on the stand. Tried rotating it as well... still to no avail.
     

    Attached Files:

  15. This might be a silly question,,,,,,but,,,that is a Chevrolet flywheel,,,right .
    From looking at the bolt holes in the crank flange,,,the shiny marks around them.
    It looks like one is in one direction,,,and another in the other direction,,and one offset to the inside toward the register ?
    Am I seeing this wrong ?

    Tommy
     
  16. The hole nex5 to the dowel hole,,,,the shiny mark is around 9 o’clock on the hole.
    The hole to the right of that one,,,,,the shiny mark is around 7 o’clock on the hole .
    The hole to the right of that,,,the shiny mark is about 5 o’clock .
    I enlarged the pic on my iPad and that’s what it looks like to me ?

    Tommy
     
  17. Does this one fit?
     
    Deuces likes this.
  18. Another silly question...but since there is no reason why it should not fit, here it is: You aren't trying to mount it on backwards are you? I do not know your experience so I thought I would ask.
     
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  19. GearheadsQCE
    Joined: Mar 23, 2011
    Posts: 2,763

    GearheadsQCE
    Alliance Vendor

    How about a picture with the flywheel on the crank showing the offset of the bolt holes?
    One other possibility: The holes line up but you have the wrong size bolts. SBC uses 7/16" - 20. Did you try the bolts in the crank flange. Could you have 12 mm bolts? Or 1/2" - 20?
     
    Deuces likes this.
  20. Is this the second thread on this dilemma or did I just dream about this thread ?
     
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  21. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,365

    gimpyshotrods
    ALLIANCE MEMBER

    You do know that some millennials are 40 by now, right?

    They are not sitting in the backseat of mom's minivan, playing with a Gameboy, mittens tied to their snowsuits.
     
  22. twenty8
    Joined: Apr 8, 2021
    Posts: 307

    twenty8
    Member

    Oh, I bet some are !!!
    Every generation has it's "precious" element......................:eek::rolleyes::D
     
  23. alphabet soup
    Joined: Jan 8, 2011
    Posts: 1,530

    alphabet soup
    ALLIANCE MEMBER

    This may be the most stupid question of all...are you using the correct size bolts???
     
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  24. greybeard360
    Joined: Feb 28, 2008
    Posts: 1,748

    greybeard360
    Member

    Witness mark on the flywheel matches the crank flange. He has to be trying the wrong bolts or keeps missing the sweet spot where all of the holes line up.
     
    stillrunners, guthriesmith and Deuces like this.
  25. KenC
    Joined: Sep 14, 2006
    Posts: 616

    KenC
    Member

    I’d put a dowel pin in it and remove any doubt. It’ll either fit or not.
     
    Deuces likes this.
  26. Bryan Andrews
    Joined: Jun 13, 2021
    Posts: 7

    Bryan Andrews

    I can try again after work today and upload pics of holes not aligning. Tried spinning it no set seems to line up. Yes I am putting the flywheel on the correct direction. Yes the bolts will screw into the flange without the flywheel being on it. When lining up the dowel holes a few holes are straight but then 1 or 2 are just far enough off that the bolt can't go in without being cocked at about 30 degrees (I don't want to crossthread anything.) My experience is not that of a master mechanic. I am sure the old block is a 68 block and a 350 that came out of the car. The car is a 63' the new engine block is a 63 but the crank is obviously 65-67. Again will mount it up and post more pics after 530 today.
     
  27. Roothawg
    Joined: Mar 14, 2001
    Posts: 21,651

    Roothawg
    Member

    How about ordering up a flywheel from the local parts guys for a 65-67. If it doesn't fit, return it. Then you would know for sure.
     
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  28. guthriesmith
    Joined: Aug 17, 2006
    Posts: 5,363

    guthriesmith
    ALLIANCE MEMBER
    1. H.A.M.B. Chapel

    I have definitely never heard of this issue and it sure doesn’t make sense. Curious to hear the final resolution.
     
    ottoman, 56don, Deuces and 1 other person like this.
  29. Well at least we know hes Still alive & Kicking.!
    What happen to the OLD Flywheel that was on the Engine
    before you started to Rebuilt it..................................?????
    Just wondering..??

    Just my 3.5 cents

    Live Learn & Die a Fool
     
    Deuces likes this.
  30. 1971BB427
    Joined: Mar 6, 2010
    Posts: 6,905

    1971BB427
    Member
    from Oregon

    That part number is a '63-'70 Chevy 153 tooth flywheel for 10.5" clutch.
     
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