ORIGINAL: andrew66
If you need to replace the engine, get a Webra or GMS. The Webra in my opinion is the best all around engine made. The GMS is a close second, cause it is cheaper. A little heavy compared to the Webra. And I dont know if they last quite as long.
i second the gms idea. the gms.47 is a great engine that is very reliable, mine will 1 flip start. turns a 10x7 in the 14600 range on 10% nitro
i also second the magnum 52 idea, mine is still new but it runs like a top turns the same prop at the same speed as a gms.47 on its frist tank of fuel. it will be hauling butt in a few gallons