Calculate Compression Ratio

  


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Input a positive number for valve reliefs or piston below deck.
Input a negative number if it has a dome or piston above deck.

CR Calculator
  Number Of Cylinders:   
  Bore:     MM     Inches 
  Stroke:     MM     Inches 
  Head Chamber (cc's):    cc's
  Valve Relief / Dome (cc's):    cc's (Negative Number if Dome)
  Gasket Thickness (compressed):     MM     Inches 
  Gasket Bore Diameter:     MM     Inches 
  Piston to Deck Height:     MM     Inches 
  Other Additions (cc's):    cc's




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