Kelsey Hayes Caliper Bolts Wanted

Go to Moparts.com and post the inquiry. I believe you will find what you need for the SBC K-H setup at that website.

If you go to the large bolt pattern, remember to add the expense of changing to 4.5" LBC wheels and the rear brakes/LBC.

Doing that conversion is not as cheap as you might think, unless you have wheels and all the hardware.