Yes. But it wont be a new engine as all the other components will be worn (bearings, carb, case, crank and conrod). Although most piston and liner sets do come with the conrod it is also a good idea to have a good look at the crankshaft (especialy where the conrod is fitted) for any dicolouring as the indicates problems i.e. Blueing - overheating (usually over lean) and Browning - Overlubing (Too rich). There are mny other reasons for discolouring but these are the main ones.