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Thread: 1957 BEL AIR CRANKSHAFT SIZES

  1. #1
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    1957 BEL AIR CRANKSHAFT SIZES

    Hi
    Could anyone please point me to information regarding standard crankshaft sizes?

  2. #2
    Registered Member Old Buzzard's Avatar
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    Registered Member BamaNomad's Avatar
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    The Service Manual should have all that information...

    PS. I found this online which may be what you're looking for 'std' journal sizes. You also might need the min/max bearing clearances, etc.. which will all be in the service manual.

    283 - 1957 through 1967
    The 283 crankshaft was basically unchanged from 1957 through 1967 although different materials were used, nodular iron and forged steel, based on the application. All were a 3.00-inch stroke and have 2.00-inch rod journals and 2.30-inch main journals.

    per "
    http://chevellestuff.net/qd/crank/crank.htm"
    Last edited by BamaNomad; 07-05-2021 at 05:31 AM.

  4. #4
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    A 57 has a forged crank and a 63 later cast will not clear block.

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