No, these fit single piston later style calipers, and use BBP 73 up A body and FMJ body rotors up to 1989. Same rotor. Also uses M body calipers that have a single 2.75" diameter piston, and will also accept A body single piston calipers with a 2.60" diameter piston.
I feel this is the way to go unless your doing a full resto. The bearings, seals, rotors, pads, calipers, and hardware are pretty inexpensive for this swap. Rock auto has all of it. I even bought raybestos severe duty pads for mine on closeout for $12. You use 73-76 A body disc brake hoses to run these calipers.