The only way to tell the difference between a 340 and a 360 is to look at the side of the engine, behind the exhaust which is pretty tough when installed. The 360 will beat a 340 if built to the same level because u get an extra 20 cubic inches. And it is far more plentiful. FAR. Take a look around and you will see. The 340 gets its reputation cause the factory released it already pretty souped up.