Modern Vespa

hi i have just started a frame up rebuild on a piaggio et 4
i have seen a number of et4's fitting with 125 and 180 runner engines
what mods if any are needed to fit the 180 piaggio engine into the frame of the et4 ?

i know if you was useing a piaggio zip its the engine mount needs cutting down but just didnt know about the et4

thanks
ben

the easier option is to put the piaggio typhoon air cooled engine in failing that you will need to find a place for the radiator i am currently building the same thing using a lx frame. you will need to find an early fx drum brake engine then use a piaggio typhoon 10 inch back wheel the gilera 13 inch back wheel is to big to fit under the frame near the rear mudguard, engine bracket needs to be trimmed down by about 12,5 mm but you may have problems with vibration