Kelsey-Hayes replacement

Looking to see if anyone has used the Wilwood Disk Brake kit. 140-2713, This is the only kit that I have found that comes close to the stock Kelsey-Hayes 1965 disk brakes. The stock rotor is 11.04 inches, this kit is 10.75 rotor, hoping it will not hit the a 14inch wheel Barracuda wheel. https://www.wilwood.com/PDF/DataSheets/ds163.pdf
Looks to me like the hub diameter is too large for a stock factory 5x4 bc wheel's center bore.
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