Guys, keep in mind here that the entire plane is only supposed to weigh 4 ounces. It's the little ShockFlyer Sukhoi 27. A Park 400 weighs nearly as much as the entire plane should, so that's not an option.

The little Feiago motors are going to be your best bet for brushless. Choose the motor based on the propeller you can get; for example, I don't think there is such a thing as a 4x1 prop. 3x2 or 4x2 GWS orange props would be your closest options.

May I ask what battery you're using now?