Turk1, its not an ASP. I bought it off ebay and the brand of the engine has been milled off. As far as I can see, it looks to be a JBA engine case, carb, and muffler but the head looks slightly different. The engine was new when I got it and it seems to run great on the ground, it just doesn't run great in the air. Here are some pictures of mine, aluminum color, and a JBA blue color. Of course on the blue engine picture they have the carb backwards. The tiger shark 52 engine is also very similar.