I would if it were me. Youd be surprised the difference in each rod and piston. My friend used to weigh each part, then match them so the weights were equal. Rod -- In BaadAssGremlins@xxxxxxxxxxxxxxx, "lumina333" <lumina3@xxxx> wrote: > When I take my engine block, rods, and crankshaft to the machine shop > and buy new pistons, should I spend the extra money to have the parts > balanced as a rotating assembly or not?