brake master cylinder for small bolt disc

[451 demon]

i have a 1972 340 demon i'm putting the kelsey hayes small bolt 4 piston brakes on it and i got a master cylinder that has even resivours front and back is this correct. or does it take the same master cylinder as 73 and newer with non power disc brakes.

 

[Demonic]

My original KH car had a master cyl with the larger rear reservoir for the front brakes. The part #'s are different between the 72/earlier and 73/later master cyl's. Might just be the bore size. I would suppose the disc master cyl would function better, or at least not have to worry about fluid transitioning to the caliper as the pads wear.

 

[451 demon]

Thanks for the reply. I bought this car from my uncle and ended up finding the vin on the block that matches the car so I’m going to try to keep it factory looking car as much as possible.