What cars can I take a dual piston master cylinder from and put on my 65 Mustang and replace the single piston master cylinder?

 

If your still running drums on the front and rear, then a '67 drum/drum dual master cylinder will work. They are relatively inexpensive, but will require some brake line rework/additions.

 

What kind of brake line work do I need to do?

 

You will save alot and get a good deal if you research compatible master cylinders and find one at your local auto parts store. When I upgraded to front discs I used a master cylinder from a 74 Maverick (Disc/Drum). If you are using drum/drum you might be able to find a reasonable new or rebuilt MC for a 67 Mustang. I was going to go this route before I did the front disc conversion. Without more details on your setup it is hard to say exactly what you need.

As for brake lines you will have to fabricate (line bending, cutting anddouble flaring)your own lines between the MC and the brake distribution block. If you are going from a single to a dual MC you will probably need a different distribution block as well. This will require additional lines being created. You can buy some preflared lines in varying lengths, but you will probably need very short lines. I bought a descent size line, and cut it down to size, and then only had to flare one end. The flaring can be tricky, b/c if you don't get it just right the lines will leak.

On a new/rebuilt MC you will also have to bench bleed the MC. This is really not a big deal, but many people get tripped up b/c they forget to do this and have trouble getting the brake system blead properly. There is good info on the net how to do this. If you have any issues or additional questions PM me.

Hope this helps.

 

Now that I think about it, you'll probally have to add some type of proportioning valve to because the standard single master cylinder only used a single line from the master cylinder to a distribution block.A dual chamber master cylinder uses 2 lines from the cylinder tothe proportioning valve.You can get the brake lines yoou'll need from any auto parts store (Auto zone....O'Reilly's......Pep Boys). The lines can usually be hand bent, just make sure you get them long enough so that they will reach where they need to go and not end up too short.

 

Thanks for the info. I will do some research before I get started.

 

You can use the 67 cylinder with stock 67 tubing and distribution block. You can buy this stuff pre-bent and this will leave you with minimal or no tubing work.

You will need your stock push rod to put into the 67 M/C.

We are using a 67 with aftermarket 4 wheel disk brakes and it works great.

I bent and flared my own tubing so I did not buy the dist block or tubing, but I think I have seen posts that claimed a straight bolt in.