Kelsey Hayes Issue!

[Bliss]

Okay people, I need some help period I have a Kelsey Hayes brake system on my 1972 Demon. I hate the small brake pattern and would like to change to 5 on 4.5. I don't have the cash to do a complete aftermarket upgrade. What can I do to keep the kh 4 piston system yet get into the larger bolt pattern. Thanks for your help.

 

[Professor Fate]

Early Mustang rotors. It's a sticky right at the top of this forum section.
Using mustang rotors for 4.5" bc