Undersquare refers to the relative size of the bore and stroke dimensions of an engine.
An undersquare engine has a larger stroke than bore diameter. Most modern engines have larger bores than strokes, so are oversquare.
Undersquare refers to the relative size of the bore and stroke dimensions of an engine.
An undersquare engine has a larger stroke than bore diameter. Most modern engines have larger bores than strokes, so are oversquare.