70chevrolet

I know the pattern is not correct.. but will they fit?
I found a few old posts of people that have used the 64 impala foam on 62 & 63 seats.
So I'm assuming if the foam fits, the covers will fit.
I know ill get torched because Chevy stuff doesn't belong on an Oldsmobile.
I know i'm committing a crime. I'm sorry.. but they're cheap and I like the patterns..
can anyone confirm yay or nay?

thanks.