Personally, I'd choose
this motor (choose 7XL or 8XL) along with the
heatsink/clamp (select the XL size). MetalMan has his endbell pop off on his Feigao even though it's screwed down, but he said he's having good luck with the JB Weld...
v1d9uy, the 7700 (or any MambaMax combo) uses an "S" size can, which is too small to run an emaxx. BTW: The number (7700) is how many RPMs the shaft turns with 1v. The "S" or "XL" is the length of the motor. A longer motor will have more torque (and lower kv) than a shorter motor of the same wind. Also, the extra length has more mass and surface area to shed heat.