Just about every piston engine is defined by two basic measurements: bore and stroke. Bore is the diameter of the cylinder. Stroke is the distance the piston travels from bottom dead center to top ...

There's a common phrase in the automotive sphere: "There's no replacement for displacement." But what does that mean, exactly? Well, an engine's displacement is measured by the volume of the ...

The bore scoring issues in Porsches can kill rod bearings, cause crankshaft and piston damage, and cracked cylinders.

In the car world, few old sayings survive like "There is no replacement for displacement.” It sounds simple, but the real story is far more interesting. Engine displacement is the total volume swept ...

Cutaway demonstration inline-four engine showing cylinder geometry - Foottoo/Getty Images There's a common phrase in the automotive sphere: "There's no replacement for displacement." But what does ...