Dykes rings need a special piston, are hard to seat, and accelerate cylinder-bore wear, so they're preferred for only very specialized applications.

Smaller-diameter pistons with tight piston-to-wall clearances don’t rock nearly as much in the cylinder bore compared to larger-bore pistons with wider piston-to-wall clearances.

Proper ring selection means understanding ring function, material, piston design, and bore dynamics. Pistons, rings, and cylinder bores must have a perfect marriage to function properly.

As both the cylinder and ring wear, a piston ring expands radially outward under the ring's tension, allowing the ring to adjust to the bore shape for a continued seal throughout the service life ...

There are two ways to increase the displacement of the engine in your car. You could bore the cylinders to a larger diameter, which requires larger pistons and is limited by cylinder wall thickness.

A 500-cc cylinder with a stroke length larger than its bore diameter, these forgotten pioneers concluded, benefits the combustion process by minimizing the engine’s internal surface-to-volume ...

A piston tells a story about the engine in which it resides. The crown can reveal the bore, the number of valves, and whether or not the fuel is directly injected into the cylinder.

Unless you drive a rotary-powered Mazda, the characteristics of your gasoline or diesel engine are largely defined by its bore (the width or diameter of the cylinders) and stroke (the distance the ...

As an added bonus, it's accurate enough that no piston-to-bore matching is required — the factory uses one size of piston, period. Should you expect to see this in future Ford products? Absolutely.

Engine building is technically a science, but the truth is that there is just as much art as there is science. Where most ...