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abnct@sbcglobal.net
abnct@sbcglobal.net asked in Cars & TransportationCar MakesDodge · 1 month ago

1970 Dodge Challenger 383 engine bored out .040. What is the cubic inch displacement now?

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  • CactiJoe
    Lv 7
    1 month ago

    Guessing around 400 CID. 

  • ?
    Lv 7
    1 month ago

    "4.040" bore x 3.75" stroke = 384.569 cu. in so its a 385"

    Source(s): https://www.corvetteforum.com/forums/c3-tech-perfo...
  • ?
    Lv 5
    1 month ago

    bore times stroke pulse chamber volume I can't be bothered lookin up the bore stroke and chamber volume right now find your calculator and add .040 to the bore diameter and recalculate.

  • Anonymous
    1 month ago

    Get your calculator.  Bore and stroke should be in inches.  Press the equals sign after each sentence.

    Original bore plus .040.  Multiply the sum by itself.  Multiply by 3.1416.  Divide by 4.  Multiply by original stroke.  Multiply by number of cylinders. 

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