Many of the aftermarket suppliers use a Corvette MC with their conversion kits. However, It's likely they are not all the same.
Corvette uses 4 wheel disc brakes while many of the aftermarket folks use them for front disc/rear drum or possibly drum/drum conversions. Some will need a proportioning valve and/or residual valves to work correctly. Call ABS at 714-771-6549, they can give you the straight scoop on what combinations work. You may not want to pay shipping from CA but they know this stuff. They sell kits and also have a shop.
Fred


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