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Thread: 5.3 bore

  1. #1
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    flat black
    1953 business coupe

    5.3 bore

    how far can u bore it safe. its iron

  2. #2
    Member 99transamC/FIA's Avatar
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    99 TRANS AM

    3.905 Max

  3. #3
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    flat black
    1953 business coupe

    man I was hoping to go 2 a conventional 4.000 bore

  4. #4
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    flat black
    1953 business coupe

    how big of a stroke will fit in it

  5. #5
    Member 99transamC/FIA's Avatar
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    4.00" will drop in with a little grinding. 4.25" will go with lots ($500-$700)of machine work.
    Run the 3.905 bore with 4.00 crank for a 383cuin 15* small block. With the right cam and mild ported heads will easily make 500+HP.Dont be afried of the small bore the difference is only a couple of HP's.

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