is 64 and 65 valiant bumpers the same?

I have some bumpers i am not sure what model they are from. One of the fronts say 65 valiant on it, but from what i see in google searches they both look the same. i will atach a pic of each
first 2 pix are of what i think are 64 valiant?
second 2 pix are marked 65 valiant.
any help is great.