Don't fall for the 10" bbp redrilled drums saga. They do not center on the hub register, ride uneven on the wheel studs and are 3/4 wider. Some member made a special ring to make the drum fit the register correctly.
This a "poverty" car. Cheapest everything and no A/C.
drums measure roughly 9 with the wheels on the car and from what I'm reading that stock for a base 68 270.
I'd love to add disc brakes but everything I looked at either was a parts list with a bunch of no longer available parts or a 500-1200+ kit for just the front brakes.
For that price I might just put new drums and hardware and get the car on the road rather then wait a year for funds or parts searching to get a "kit"
