hey guys i have a 1990 Accord and i was wondering if its possible to do a conversion from the drum brakes to disk, and if so which cars are good donor cars ?

 

Best bet would be to find a 90-93 Accord with rear discs and pull the rear subframe, trailing arms, brakes, e-brake cables, hoses, etc and swap it to yours.

I believe there is some difference between the drum and disc prop valves also. The drum prop valve has less rear bias than the disc prop valve, so your braking performance will actually be worse unless you swap in the correct prop valve.