don't know how similar they are on the back side, but i had a set of 15X7 early 70's Z/28 wheels on the Nova with the C4 front brakes. i only had to grind the corners of the calipers down like 1/8" to get them to fit.
you don't plan sincerity.
you have to make it up on the spot.
wanna hear about 20 years ago when i was too smart to know any better?