Doug,
You can use the complete front brakes (rotors, calipers & hoses)from a 74-77 Malibu. I think that same era camaro may also work. Then buy the bracket kit from one of the aftermarket suppliers. You are not done there however as you will still need a power booster, master cylinder, & proportioning valve (under the floor type). It's probably better to buy the booster assy as a kit.
Fred
Note: This will give you a 5 x 4 3/4 bolt pattern. The six lug conversions are more complicated.

Last edited by rfs56trk; 12/06/2007 5:24 PM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine