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I own a 03 f5 sno pro and was looking to get into an f7. online i found a brand new f7 motor for a good price and was considering putting it in the f5. i was looking for some advice to see if its worth it or should i just find a good used f7? if i do the conversion will it fit in the chasis? is it the same size as the f7? my f5 is carbuerated and the f7 motor is efi. what would i need to do? i think the ecu comes with the motor but im not sure yet. i was reading past forums and i saw one about an 440 fircat chassis that was being converted to a 700 but it was carb and the said they needed another heat exchanger but i dont know if i would need one. also they mentioned about the oil injection. they blocked it off and ran premix. also if i did it should i re gear it? im sure it can be done but is it worth it overall?
any info would help.
 
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