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Thread: small journal or large journal?
          
   
   

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  1. #6
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
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    May 2003
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    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway
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    12,423

    Large journal caps are a little taller and require a little longer stud. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45", so if your block was manufactured before that, it's a small journal, after that it's a large journal.

    Small journal cranks have a main diameter of 2.300" and a rod diameter of 2.000".

    Large journal cranks have a main diameter of 2.450" and a rod diameter of 2.100".
    Last edited by techinspector1; 02-10-2006 at 10:18 PM.
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