318 LA Thrust Demensions

Small Block Mopar Engine

  1. 1Badcolt

    1Badcolt Well-Known Member

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    What is inside & outside demensions
    For thrust bearing on pre 74 blocks !!!
    And 74 and newer blocks if possible !!!!
     
    Last edited: Sep 5, 2019
  2. 1Badcolt

    1Badcolt Well-Known Member

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    I guess I need 74 and newer demensions also if possible .
     
  3. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    The thrust surface increased, 360's did, you can use early in late but the not the other way around
     
  4. 1Badcolt

    1Badcolt Well-Known Member

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    So using an early model 318
    1968 model I can use a 340 steel crank casting # 2532457
     
  5. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    Yes.
    You can use a 273 crank, 340 crank , 318...they will all work when balanced/rebalanced.
    So the crank and block are pre 74, use pre 74 bearings.
     
  6. 1Badcolt

    1Badcolt Well-Known Member

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    Crank is a unique one
    Its a Chrysler 340 steel oem crank but it was Bob Gliddens but its 3.20 stroke and runs 2.0 Chebby rod journals.

    20180910_132153.jpg

    20180910_163818.jpg

    20180910_132421.jpg
     
  7. 1Badcolt

    1Badcolt Well-Known Member

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    Glidden only ran one year with Chrysler 1979
    Crank is dated 1977
    So basically post 74 on crank going in a 68 Model 318 block .
     
  8. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    Use the early 318 main bearing set, Chevy rod bearing set.

    Nice piece of history, have a blast with it. Whatever you ...do make sure you put it together right so it doesn't fly apart and destroy it.
    Modify the main bearings with a slot hole.
     
    Last edited: Sep 6, 2019
  9. 1Badcolt

    1Badcolt Well-Known Member

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    Elaborate on modification
     
    Last edited: Sep 6, 2019
  10. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    Codification?
    You need to use a thrust bearing that fits the block, if the thrust is small...then the machined seat it sits in won't accommodate the '74 'larger diameter' thrust bearing.It just wont fit and seat.
    With the exception of the thrust bearing either set fits either new or late block. So heres the other end .. it doesn't matter that the crank thrust surface is larger or smaller diameter/face than the bearing.
     
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    • 1Badcolt

      1Badcolt Well-Known Member

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      Sorry didnt have my glasses on thanks for correcting my spelling !!
       
    • MOPAROFFICIAL

      MOPAROFFICIAL Well-Known Member

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      Lol No it's fine, I dont hear that word used often. Hope you have the info you need now and understand.
       
    • 1Badcolt

      1Badcolt Well-Known Member

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      Yes sir
      Thanks Chris.
       
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