As I recall the engine weighs 232 lbs with all accessories installed. This includes a starter, alternator, engine driven fuel pump, carb, one mag and one electronic ignition system. You can go on to the Rotec Website at www.rotecradialengines.com to verify that and look at all the specifications. They are very helpful in providing data for the do it yourselfers or if you like, they can also provide numerous other accessories including prop's, engine instruments, engine mounts etc...
My experience in dealing with this company is that they are a top notch organization. Very helpful, very friendly and they build a dynamite product.