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Thread: CONFUSED! Small Block Casting #'s
          
   
   

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  1. #1
    TooMany2count's Avatar
    TooMany2count is offline CHR Member Visit my Photo Gallery
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  2. #2
    robot's Avatar
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    Code YW is listed in my book as a 1966 327 cubic inch 185 horsepower L32 engine with a manual transmission and a 2bbl carb.
    It was installed in a 60 series truck.

    mike in tucson

  3. #3
    trkbr2001 is offline Registered User Visit my Photo Gallery
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    It has a automatic transmission if that helps.

  4. #4
    robot's Avatar
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    Sorry, but the MSA-1 book only lists the manual transmission 60 series truck for this letter code for a small block. You should pull the pan and see if it is a small journal crank.....cranks and flexplates get changed over the years.

    mike in tucson

  5. #5
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    So do transmisions auto/ stick its a 327 two bolt main 64-67
    Last edited by cffisher; 05-27-2009 at 12:07 PM.
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  6. #6
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    Additional Info:

    3858174 - 327ci produced 1964 to 1967, 2 bolt block
    F0129YW

    F = Flint Plant
    01 = January
    29 = 29th day of January
    YW = 1966 truck, 185hp, 2 barrel carb w/manual transmission

    That's not to say this engine could not have been swapped into something else - however, it came from the factory in a 1966 truck with a manual transmission.

    If it were a big block, you are correct in stating that it would be a 427, 216hp, 4 barrel carb w/manual transmission (C60 series truck)
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  7. #7
    robot's Avatar
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    and it was born 43+ years ago.....it has probably been apart a couple of times.

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