541-942-5920


Compression Ratio Calculator

Engine Size and Compression Calculator

Fill in either SAE or Metric values by double clicking on "number". Then click on when finished.

Cylinder Diameter 
(
inches ex: 4.25)

Cylinder Diameter (mm)
Stroke Length (inches ex: 4.25)
Stroke Length (mm)
Number of cylinders (4, 5, 6, 8)
Number of cylinders
Chamber in cc's (ex: 119)
Chamber in cc's
Piston dome in cc's 
(Dome = positive #, Flat = 0, dished = negative number)
ex: 22

Piston dome in cc's
Gasket Thickness in inches (add plus or minus amount piston is in the hole) ex: .42
Gasket Thickness in mm (add plus or minus amount piston is in the hole)

The displacement is cubic inches or liters.
Approximate Compression ratio of       :1  

 


541-942-5920


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