Calculating Cubic Inch Displacement & Compression Ratio

Sample: 4.000 bore - 3.480 stroke - .040 head gasket thickness - 76 cc head volume should give you a CID of 349.781 (350 Chevrolet) with a compression ratio of 8.5 to 1. Chevrolet also made 64, 68 & 72 cc heads. Check the changes in compression ratio if you enter these numbers, or use a .020 steel shim head gasket.

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Bore: Diameter in Inches
Stroke: Distance In Inches
Head Gasket: Thickness In Inches
Cylinders: Number of Cylinders
Cylinder Head Volume Number in Cubic Centimeters

Displacement: in Cubic Inches

Displacement: in Cubic Liters

Compression Ratio:

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CUBIC INCH CALCULATOR and COMPRESSION RATIO

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