[link=http://www.wholesaletrains.com/Detail.asp?ID=200518123]Aviastar .46[/link] here is a good price if you decide on the aviastar.

OK I have each of these engines, a Super Tigre .45 a Magnum .46 and a tower hobbies (actually gms) .46, that is the engine size I would put on that plane, that being said, the smoothest running pop right off no worries engine out of the 3 is the tower. The magnum runs a very close second, it is not as strong and needs a tad more tinkering. The ST is absolutely the strongest out of the 3 but it needs tuned almost every time the plane goes up on any given day. I have a couple of other .46 engines an OS .46 fxi from my brothers nextstar crash, it is no stronger then the tiger, way less hassle tho. ANY of em are good engines. I have a mecoa .46 that is comparable to any of them also, in the same price range