no...my understanding is that the seats, though they appear simular, are not close enough in size so the Nova seat covers will not fit the Camaro buckets....I think the camaro buckets have thinner seat backs...or something like that....Possibly someone else will chim in with more info
I believe the whole seat is smaller plus other differences. But you still got a heck of a deal on them, I'd like to find some for that price.
If you are not worried about originality, try them in the Nova and see how they work for you. You'll have to make or modify your floor mounts.
Let us know the outcome for future reference.