Hey, my engine in my 97 maxima just blew a piston ring i think, lots of smoke and did 20 miles on half a tank of gas??? "somthing really f***ed up"..lol want to know how difficult it would be to change it into a 3.5, a 6spd and the ecu allllll of it?

 

very difficult. vq35 and keep your stock 5spd or swap in stock 4th gen/5th gen 5 spd a lot easier and more feasible