Hey guys, can anyone tell me the difference between the 172/182 F4r 732 and the 197/200 F4r 830 engine? and also would the gearbox off a 197 fit a 172/182. I know that I would need to change the linkages, only reason I ask is that I have a spare 197 box and I have just bought a 172 with the engine and gear box broken as a little project, any info would be great.