anyone done this? I've been going through the part numbers and I've only found a couple differences, head same, belts/pumps/thermostat same, sensors same, intake/exhaust same, timing chain setup the same (who said n16 was more reliable?!?!) block, oil pump and oil filter housing changed but that's all I've found so far I picked up a 09 justa with a blown motor, n16's are 400-600 $ cheaper than n12's
Do you mean N14 and N18? I would stick with the N14. It is a very strong motor it just has a bad rap from the way the PVC system is routed.