Having a hard time decifering block number!

Small Block Mopar Engine

  1. Wally-T

    Wally-T Well-Known Member

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    It's in a 64 Valiant. Supposed to be a 64-65 273 ci 180 hp engine. The distributor isn't right, I can't find the right rotor for it (that's in my last post), but all other parts I've purchased so far are correct for a 64 - 273 (water pump, timing chain set manifold gaskets etc.)
    I got the block number from under the the front of the left side head, it's:
    VX2 - 38904C
    Can anybody decipher this? I can't find it on any of the Mopar or performance sites I've visited, not even close.
    Thanks again, Wally
     
  2. Demonracer

    Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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    Find the 7 digit casting number on the side of the block & there will be a casting date close to that also. That will help in identifying the block.
     
  3. toolmanmike

    toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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    It will be 2465330 and that is the casting number for 64-66 273. 2 and 4 barrel.
     
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    • Demonracer

      Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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      Tmm, I wonder if someone used a poly distributor in his engine since your book shows it to fit 1963. IIRC I think it will fit with no alterations to the shaft.
       
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      • toolmanmike

        toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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        I mentioned that in a previous post. Probably so. The only Prestoite distributors we know about in our year range of engines are dual points.
         
      • Demonracer

        Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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        Sorry, I guess I missed that post.
         
      • toolmanmike

        toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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        There was 2 separate threads for the same subject. A little confusing. LOL
         
      • Wally-T

        Wally-T Well-Known Member

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        Yes, I don't know how that happened, sorry folks
         
      • toolmanmike

        toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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        No problem, I merged your two threads.
         
      • Wally-T

        Wally-T Well-Known Member

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        Thanks
         
      • cudamark

        cudamark FABO Gold Member FABO Gold Member

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        In '64 it should be V 273. In '65 it would be A 273. The rest of the numbers are date codes. Sometimes rebuilders will add their own numbers and/or wipe out the old ones.
         
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