Why does the bore sizr say 4.0 after the calculation is done when I put in 4.03?
Here:
Input Parameters Are the Following:

* Cylinder head Volume (CC) = 56.00
* Piston Top Volume (CC) = 31.00
* Cylinder Bore (Inches) = 4.0
* Cylinder Stroke (Inches) = 3.75
* Deck Height (Inches) = 0.006
* Head Gasket Thickness (Inches) = 0.039

Computation Results:
# Computed Compression Ratio is 9.1 to 1

I would just like to know if it used a 4.03 bore for the calculation or not. Im assuming if I didnt overall compression would be lower but I would like to know how much.
Thanks
-Mark

 

The difference would be ~0.15.

Rich