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Discussion Starter · #1 ·
Number Of Cylinders:
Head Chamber (cc's):
Valve Relief / Dome (cc's):
Gasket Thickness:
Gasket Bore Diameter:
Deck Height:
Other Additions (cc's):
I have a question about " Other Additions " Do you folks add anything here and is this per cylinder ??? I know it's for cylinder chamfer, Ringland and so on but didn't know if I should add and how much. Thank You

More for Less Racer
21,121 Posts
The catagory is for things like a dish faced valve, the spark plug volume, ringland crevice.

It is a recent adition to the Wallace calculator, showed up just in the last couple of months. I typically add nothing, as the amounts for the things i just mentioned are just really small in something 300 cubic inch or bigger, with dish faced valves being about the only thing that would have much impact on a domestic V8 calculation....but could be a big issue on something small like a 150 cubic inch
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