VEX 393 stalling

No… it won’t.
In fact, most likely you will damaged the motor instead.

V5 v 393 motors - Chit-Chat / Rumor Mill - VEX Forum

here’s some of @jpearman 's earlier work on 393 motor.

And btw, there should be a PTC inside the motor that will limit the amount of current that you can pass to the motor (it will tripped once it goes past certain temperature for a short amount of time).