The 402-cubic-inch V8 is nothing more than a 396-cubic-inch bored out by 0.030. the 396 had a bore of 4.094 in and stroke of 3.76 in. So the 402 had a bore of 4.124 in and stoke of 3.76 in.
Bore = the (internal) diameter of the cylnder hole in the engine block.Stroke = the distance the piston travels up (or down) the bore during its' cycle.If you multiply the bore dimension by the...
Bore is the diameter of the piston/cylinder, stroke is the distance the piston can travel between its highest position and its lowest position in the cylinder.