Hi Guys,

I'm going to be starting the build of a Sig LT-40 and would like to put a four stroke engine in to it. I just love the sound of four strokes. I have a choice of three engines a OS FS52 surpass, Saito FA62a, and a os FS 70 surpass II. Now the prices are all very similar as my LHS has a sale on the OS's. I know the right engine for it is the 52, some will say a 46ax two stroke, but ideally I would like to be able to use the engine again on another plane. The 62 and 70 will be of more use than the 52. Am I going to experience major problems with either of the bigger engines? Should I just stick with the 52 and hope to find a plane that it will fit in and work well with.

Any thoughts and info are greatly appreciated.

Craig.