63 to 64 engine bay differences

Hi everyone, Im from Australia and have a 64 Australian falc which is different to your 64 but very similar/the same to your 63. I have purchased an autoworks international mega cool radiator kit from the states which they say suits your 64-65 falcons. Iam wondering what the differences between the 63 & 64 radiator support and chassis rails are if any. Mine will be heavily modified & you can check it out on www.fastlanespeedshop.com.au under projects. Any info would be much appreciated. Cheers
Mat