need help i.d.ing 6cyl. - NCRS Discussion Boards

need help i.d.ing 6cyl.

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  • Richard S.
    Expired
    • December 15, 2006
    • 53

    need help i.d.ing 6cyl.

    a friend has a 6cyl with block numbers 3837004 and below that is GM12 followed by the word SPECIAL. the head has B50 then 848/850. water pump 3736587 above GM13. will try to post pictures which i havent done before
  • Harry S.
    Extremely Frequent Poster
    • July 31, 2002
    • 5293

    #2
    Re: need help i.d.ing 6cyl.

    What are we trying to identify this for?


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    • Richard S.
      Expired
      • December 15, 2006
      • 53

      #3
      Re: need help i.d.ing 6cyl.

      we are just curios to why it has special cast into the side of the block. it has a 1bbl intake manifold and a torque converter bolted to the flywheel

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      • Chuck G.
        Extremely Frequent Poster
        • May 31, 1982
        • 2034

        #4
        Re: need help i.d.ing 6cyl.

        Sounds like a 55-57 truck block, 235 CI

        I did a quick Google, and got a number of hits on that casting number.

        I have a 1949 3100 bought new by my grandfather. I know for a fact this truck has never had a motor swap. the casting number is 3837004. The serial nu...


        Chuck
        1963 Corvette Conv. 327/360 NCRS Top Flight
        2006 Corvette Conv. Velocity Yellow NCRS Top Flight
        1956 Chevy Sedan. 350/4 Speed Hot Rod

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