Butler Performance • Pontiac Tech
Pontiac Compression Calculator
Calculate static compression ratio and displacement for any Pontiac V8. Pick your block below for preset bore & stroke shortcuts, or use the universal calculator.
Choose Your Block
Static Compression Ratio
10.4 : 1
Total Displacement
400 ci
6554 cc
Per-Cylinder Volume Breakdown
Swept volume819.3 cc
Chamber volume72.0 cc
Deck volume0.0 cc
Gasket volume8.7 cc
Piston volume+6.0 cc
Total clearance volume86.7 cc
8-cylinder Pontiac V8. This is a static (geometric) compression ratio for build planning. cc your actual heads and confirm deck height after machining. Questions on your combo? Ask a Butler Tech ›
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Compression Calculator by Block
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Compression Calculator
Simply fill in the form below to calculate your compression ratio
| Bore: (diameter) | |
| Stroke: | |
| Cylinder Head Volume: | |
| Effective Dome Volume: Use (-) for Dome and (+) for Dish. |
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| Deck Clearance: | |
| Compressed Gasket Thickness: | |
| Number of Cylinders: | |
| Compression Ratio : | |
| Total Displacement (in.3) : | |
| Total Displacement cc's : | |
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