3. After using the piston ring squaring tool, the ring gap measured 0.019-inch. That's a 0.005-inch difference, which in the world of high performance engine building, might as well be a mile.

Discover why engines typically use three piston rings and how these small components play a crucial role in performance, ...

In a conventional application, there are three rings per piston. The top ring is called the compression ring. Its purpose is to seal the combustion gas pressure, transfer heat from the piston to ...