As mentioned, stock for a '64 Imperial would be a 15 X 6" 5-5 1/2" Imperial only wheel (1948155). They came on '60-66 Imperials. The stock wheel cover is a '64 only part (2409812). In '57-9, they also made a 14 X 7" wheel (1730814) with the same bolt pattern that would fit the car too, but, the...