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What size is my engine

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  • What size is my engine

    I have a 1956 Studebaker Power Hawk and I'm not sure what engine is in it. The number on the front/center of the engine is 1554641 and a number on the right side of the engine is 535976. Can anyone tell from this info if it is a 259 or a 289?

  • #2
    I'll guess and say 259.
    Joseph R. Zeiger

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    • #3
      oops! but not with those #s,look on the flat surface of the driver front corner of the block. V 259 P 289
      Joseph R. Zeiger

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      • #4
        Power Hawks in the U.S. would have been built with a 259
        Frank van Doorn
        Omaha, Ne.
        1962 GT Hawk 289 4 speed
        1941 Champion streetrod, R-2 Powered, GM 200-4R trans.
        1952 V-8 232 Commander State "Starliner" hardtop OD

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        • #5
          1554641 is the casting number for the late engine blocks, used from mid-'62 through '64. It has a spin-on oil filter located at the lower right side of the block.
          535976 is the casting number for cylinder heads used from about 1955 to '61. They may be the original heads on the car.
          The engine serial number is [U]stamped[U] and would be found in a smooth area at the left front corner of the block, just across from the casting number.
          Last edited by Dwain G.; 09-08-2010, 08:15 AM. Reason: I see the underline feature works real well.

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          • #6
            Thanks for the help.

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            • #7
              From a previous post:



              Hey, maybe it will look like this!

              Last edited by barnlark; 09-08-2010, 05:33 PM.

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