Well I can't say shit about my 7m, I went 2jz but that's because I love the motor, the 7m I had in my car had 180K miles, basic tune up and right before I took it out for the 2jz, I TRIED, yes TRIED, to blow it up, yea, no coolant, 2 qrts of oil, and put 500 miles on it before I gave up and tore...