Definition of the Term CCs as it Applies to Engine Displacement

The displacement of an internal combustion engine (ICE) is usually measured in cubic centimeters, or CCs. The number of CCs in an engine is written as 500cc which is equal to half a liter, or 30.5 inches.

The total number of CCs can be in one single cylinder or spread across multiple cylinders. Usually in even numbers to maintain balance but not always.