the 14500 are only available in 700mAh and only about 9.85A max draw per cell fine for stock not 180s
The main question is, are 2 14500 efests enough?
by jumping up to 18650 you can get 2400mAh @ 30A per cell 180s can do fine a 2s li-po is cheaper sort
jump up to 26650 you can get 3500mAh @ 64A purple efest per cell or 4200mAh @ 50A green efest
mAh = run time
figure adverage of 5 amps while spinning then 10-20A on start up for a split second