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Technical 8BA 49 Ford Crank Bolt Size

Discussion in 'Traditional Customs' started by gijoe985, Nov 18, 2015.

  1. gijoe985
    Joined: Jan 7, 2015
    Posts: 172

    gijoe985

    My students lost the crank bolts to a 49 Ford Custom and I was wondering if anyone knew the sizes of the bolts?
     
  2. gijoe985
    Joined: Jan 7, 2015
    Posts: 172

    gijoe985

    Make that "bolt" in singular. Had a student post that... They lost the crank bolt to our flathead and I've got nothing that size laying around.
     
  3. Ask Mac Van Pelt.
     
  4. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    "The crank thread is 5/8 UNF.

    Mart." Mart on Fordbarn. Parts catalogs describe fasteners, can be very useful on stuff like this.
    Remember, you need the big and very thick washer too...
     

  5. 19Fordy
    Joined: May 17, 2003
    Posts: 7,298

    19Fordy
    Member

    5/8-18 by one and 1/8 long.
     
  6. GOSFAST
    Joined: Jul 4, 2006
    Posts: 254

    GOSFAST
    Member

    Hi Joe, Pontiac balancer bolt & washer is the same as the Flatheads.

    P.S. Pontiac's should be much easier to find locally??
     
  7. Mac VP
    Joined: May 13, 2014
    Posts: 364

    Mac VP
    Member

    We stock the bolt and washer as a kit (20639-SK). Call our office in the morning if you can't find it elsewhere.
     
    Truck64 likes this.
  8. Katuna
    Joined: Feb 25, 2005
    Posts: 1,823

    Katuna
    Member
    from Clovis,Ca.

    Too bad they did away with corporal punishment in school. That's how you learned not to lose things. Ah, the good old days (sigh).
     
    gijoe985 and Texas Webb like this.
  9. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    And neither the bolt nor the washer are going to be a Home Depot, so go with Van Pelt!
     
  10. gijoe985
    Joined: Jan 7, 2015
    Posts: 172

    gijoe985

    I'll probably be giving you a call. I actually didn't really "know" about you until this post, yet I just realized that I printed off the torque specs for our motor from your website yesterday. Small world...
     
  11. gijoe985
    Joined: Jan 7, 2015
    Posts: 172

    gijoe985

    Mac, I've had a student try calling your number on your website the last couple days and she wasn't able to get through. She said she left a message on Friday.
     

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