Hot Rods 1" master cylinder with disc/disc. Help needed urgently.

If you use jap stuff cut the line and take fittings going into the master cylinder. And try to find some with the same size line. That way you may be able to double flair and use the jap fittings at the MC.

 

to make that push rod failsafe weld a short length of tube steel to a mounting flange to bolt up behind your M/C setup on the back of the mounting member.

 

The stock Corvette masters came in two sizes: 1" for manual 4 disc and 1 1/8" for power 4 disc.
I have the stock Corvette 4 piston calipers on all four wheels of my car and I'm using the 1 1/8" master without power. The larger bore requires a little more leg power but the pushrod doesn't have to move as far to lock up the brakes.
I would recommend doing whatever you have to do to get a Corvette master.

 

I fitted a 1" Wilwood MC, single piston, installed, bled it briefly with a T piece to split the flow, now have a good pedal and brakes!!! So easy.