Factory maximum is 61.100 so really you are over but the one measurement doesn't really mean much...are the cylinders out of round? how is the taper? How close are all 4 cylinders. you could make it work IF the cylinders are round and have minimal taper but beings they are wore to the max I doubt they are round or straight anymore, they tend to wear oval shape because of the air cooling and how the cylinders expand with heat. You really need to go with the next oversize. Would it run if you put it together...yes, will it run great...no, will it run ok...probably, will it burn oil...there is a good chance it will. If you want a good tight running motor you need to bore it.