appropriate 4 wheel disk MC?

[Bad Shrimp]

New to altering brake systems etc. so this ? may have already been asked.

Just purchased rear disk kit (single piston calipers) http://www.summitracing.com/parts/SUM-BK1329/

and will be getting the Viper (4 piston) caliper setup before years end.

Currently have stock 1974 Scamp master cylinder (front disk/rear drum)

I plan to buy a new MC to work with the 4 wheel disk setup, but i'm a lil' bit confused on what is needed for bore size.

Mancini racing is selling 1.125" MC http://chucker54.stores.yahoo.net/24whdibrmacy.html

Any input/advice is greatly appreciated.

Thanks in advance,

Bad Shrimp

edit: will be staying with manual brakes.

 

[mtandrews]

my nephews Swinger and my Duster are 4 wheel disc, both are 11.75" Gran Fury disc on front and 95 (mine) and 97 (nephews) Cherokee discs on rear. We both are using the stock MC for a 72 Valiant/Duster/Swinger with power front discs. No problems and brakes work fine. Oh and both have a Wilwood adjustable prop valve for the rear.