To find the combustion chamber volume for a *specific* 1985 Corvette head, you would need to:
* Identify the engine: Determine precisely which engine (L83 or L98, for example) was in the Corvette.
* Measure the volume: This requires carefully filling the combustion chamber with a liquid (like water or a suitable measuring fluid) and measuring the volume displaced. This is a precise measurement requiring specialized tools and techniques.
* Check service manuals: While not always giving precise numbers, detailed service manuals for the specific engine might give a range or nominal value.
Without knowing the precise engine and then performing a measurement, or finding a very precise service manual, any number given would only be an approximation.