How to fix a cracked block, easy also

Man I wish I knew about stitch weld before I threw a bunch of big $$$ motors out, easy also just takes a few hours.
  1. halifaxhops

    halifaxhops It's going to get stupid around here! FABO Gold Member

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    • Thanks! Thanks! x 1
    • 89on35s

      89on35s Inferno Red Duster FABO Gold Member

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      I have used this for crack repair on other industrial applications and it works very well. Thanks for the article!

      Cley
       
    • Demonic

      Demonic Well-Known Member

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      Nice pictures, good information. Thanks!
       
    • azaustin

      azaustin FABO Gold Member FABO Gold Member

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      This may help me save my original 273 block for my ‘65 Dart. Thanks! FABO at its’ best1
       
    • 69FBCuda

      69FBCuda Life in the Fast Lane FABO Gold Member

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      No leaking in between the plugs, nothing extra needed?
       
    • famous bob

      famous bob mopar misfit

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      I did that type repair back in the late 70`s , it is best if drilling the next hole 1/2 in the previous hole/bolt , overlapping them, break each bolt off by overtightening , using 1/2 long grade 5 , 1/4-20 bolts. CENTER PUNCH TO DRILL , LOCTITE ALL THREADS BEFORE SCREWING IN TO BREAK OFF. Peen the broken bolt surfaces when done . No need to grind smooth , better to leave it peened , will look about like a weld bead when done this way . I did my hemi block that way , in my driveway back then , its still running today !
      This is the way humongous pipeline engines are repaired by professionals , when cracked .
       
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      • Andrezinho

        Andrezinho FABO Gold Member FABO Gold Member

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        It is a very old method that comes from the railroad. it works very well.
        I just recovered a 1904 engine with this way.
        the great advantage is that it can be repaired cold and that it does not cause tension such as welding.
         
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