I own a 1974 Alfetta 1.8 and have a pair of Guilietta front disc rotors that I would like to  fit to my car (the current ones are down to minimum thickness). They appear to be identical in all dimensions except the rotor thickness (Guilietta is 3-4mm thicker) - which I thought may be a good thing. Are these compatible with my Alfetta? Will the current/std caliper and pads fit?
Any advice will be most appreciated.