I Have a 1960 Chevy biscayne. My question is about the front drum brakes. I want to convert them to discs. I believe it'd be cheaper if I bought the parts from the same year, or around the same year.

They did not come with disc brakes then but I did buy a kit for my 59 chevy it comes with every thing you need booster, master, brackets, rotors ,bearings, calibers and pads bolts right on I also got 2" drop spindles for mine they are a pain in the butt cant get enough camber

80's monte carlo would be the swap with the smallest headache and u can get a standard brake master with no booster so u wont have 2 worry about clearences