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    Results 1 to 2 of 2
    1. #1
      Join Date
      Nov 2011
      Location
      Livermore, CA
      Posts
      668
      Country Flag: United States

      Is there an easy way to determine compression ratio with the following information

      and if not what am I missing?



      416 LS3
      4.065" bore
      4.000" stroke
      -4cc valve relief flat top mahle pistons
      Cam 227/243 114LSA .614/.624 Lift


      The Cam appears to be good to about 7K (a tad low) and good for midrange power with a Centrifugal blower (based on what comp cams say). Considering turbo charging, but the motor is built and running, so trying to determine the comp ratio to see if it's possible, without a tear out or should I just consider a blower and throw out my Turbo ideas?

      Thanks
      Tory


    2. #2
      Join Date
      Jun 2012
      Location
      South Lyon, MI
      Posts
      1,217
      Country Flag: United States
      You will need cylinder head volume and piston pin to top of piston measurement to know the distance from the top of the piston to the top of the deck.

      There are lots of online calculators you can use once you have that information.



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