One way to increase the power of an engine is to _____ its capacity, that is, the amount of space for fuel and air above the piston. The volume inside the cylinders can be increased by making them wider, in a process known as engine _____.A machine shop will bore the cylinders out to increase the diameter, while ensuring that the cylinder runs exactly _____ to the _____. Once this is done, the engine will need oversized _____ and piston rings to fit the newly sized cylinder.