***4.5" to 4" redrill?***

[Two7T3Dart]

Probably been asked before, but, with the scarcity and price of the 4"bolt pattern front disc brake situation, has anyone tried redrilling the later '73-'76 A or B body disc setup to 4" bolt circle?

 

[chryslerfat]

I believe the center hub register is larger on the 4.5 rotor than the KH 4 pattern rotor.

 

[Two7T3Dart]

I believe the center hub register is larger on the 4.5 rotor than the KH 4 pattern rotor.

Copy that! What I was thinking...use the whole later setup and just redrill the 4.5" later rotors to a 4" bolt circle. Can the center register on the 4" BC wheels be opened up a bit?

 

[Jimacuda]

No.
Your talking about enlarging the hole diameter 1/2"+.

 

[charger426]

Why not got with the Scarbird set up? Keep your small bolt pattern and get drilled ad slotted rotors for around 3-400 bucks.

 

[longarm]

Here's a thread that I asked a similar question in.
Memike added another link.

http://www.forabodiesonly.com/mopar/showthread.php?t=297368&highlight=rotor

 

[Two7T3Dart]

Thanks longarm!!