If by AA batteries you mean like Energizer, Duracell, etc that you buy from the grocery store...none will work with your current motors. You'd be better off going back to stock motors.
If you want added performance while using AAs, about the only thing that might work a little better are RM2 motors. The only batteries you should use with these are four AA batteries.
2 notes on RM2s:
1. Even running them on four AA batteries, they are prone to breaking.
2. They give some performance gain over stock motors, but not a ton.
I might be using the wrong name, I meant cell battries. Could you reccomend some that are suitable for my motors?