Well not to battle anyones personal experience with the v3 motors but I just finished a 7 month off road series where I ran a 10.5 v3 motor and had zero issues with it. I abused it, over heated it and it still ran great. Haven't had a issue with it at all. I have 3 different winds of the motor and all of them have been good. They are not in a touring car, but a 4 wheeler. But they have been smooth, powerful and dependable. I have seen every motor manufactures motor fail and usually there is a different root cause if you continue to dump motors. Just my 2 cents.