Traxxas may call the EMaxx a 1/10 but it's not the same 1/10 that the motor/esc manufacturer is thinking of when it says 1/10. A truck the weight of the EMaxx needs a 1/8 brushless system which consists of a motor that's at least 36mm diameter (40mm preferred) and at least 70mm long (74mm or longer preferred) with a kv that's 2400kv or less (2000-2200kv preferable). As far as esc it needs to be at least 120amp capable, 150amp preferred and 4s capable.

The system you linked is a 3650 motor (36mm diameter, 50mm long) which means less power and the motor working harder, heating up faster. The esc is only 60amp capable which will be exceeded in a truck this weight. With only 2s you have less voltage which means less power, higher amp draw, more heat etc.

There are some people using smaller motors and esc in an EMaxx with less than 4s. Those are usually Short Course Truck (SCT) systems and on 3s. SCT systems usually have 550 motors that aren't much smaller than 1/8 motors and the esc are usually at least 80amp if not 120amp. Even so with these SCT systems in an EMaxx you have to watch temps carefully and gear for slower speeds to keep them in check. If your truck has bigger and heavier tires, aluminum parts or if you run on grass then you need gear even slower. Get a 1/8 system you'll be better off.