Hey guys im looking at this mustang a guy is selling. Anyway its a 2001 gt with 56k on it for 5300. The bad is the guy says it has a noise he is 99% sure is piston slap. Ok so he is a mechanic and says that if i did want a new engine he would put one in and only charge parts and bring the price up to 6500. Would it be a better idea to get the mustang with a new engine for the 6500? Or would it be best to get it as is and then have a stroker kit put in or would that not fix the piston slap? Also anyone know how serious piston slap is?