Dual master cylinder conversion recommendation

[Silent Thunder]

I want to convert my single cylinder master brake cylinder to a dual. Which brand or who's product (model) will fit (work) the best? I have a 64 Valiant.

 

[Craven Moorhead]

Mopar performance has a relocation plate and dual master, be aware of your brake set up drum or disc drum/disc and proportion valve needs.

 

[valiant1966]

I am not sure about your 64 but if the master cylinder has a 4 bolt mount, I think you just need to get a 67-68 dual master cylinder and mount it. Plumb it up properly and you're good. If you still have all drum brakes, you don't need a proportioning valve, just use the existing distribution block. Maybe this link will help and others will chime in. Dennis

http://www.earlycuda.org/tech/dualmaster.htm

 

[slantsixdan]

If you pick your components thoughtfully, you do not need any sort of a "relocation plate", nor will you need a new pushrod. You don't specify which brake system your '64 has, but the two systems available from the factory in '64 were both 4-wheel drum systems, either 9" all around or 10" all around, both with the same master cylinder. Get a new master cylinder, don't futz around with "remanufactured" garbage. Use a Wagner MC71258, Bendix 11323 or Raybestos MC36221. It'll bolt right in place of your existing single-pot master, and your existing pushrod will fit and work correctly. You'll need a distribution (splitter) block; this can be had used from any A-body with 4-wheel drums, '67-up, but probably easiest to get it new from Inline Tube for $35. You'll need to run dual hardlines from the new master to the splitter block. Be sure to bend at least one fully-circular loop in each of them to let them flex with vehicle motion without work-hardening and becoming brittle. Steel line is standard and is a pain to work with; Cunifer is a lot easier (and better).

Decide whose opinion you agree with on brake fluid (see thread here), bench-bleed the master cylinder before you install it, bleed the brakes when you're done, and you're all set.

 

[Silent Thunder]

If you pick your components thoughtfully, you do not need any sort of a "relocation plate", nor will you need a new pushrod. You don't specify which brake system your '64 has, but the two systems available from the factory in '64 were both 4-wheel drum systems, either 9" all around or 10" all around, both with the same master cylinder. Get a new master cylinder, don't futz around with "remanufactured" garbage. Use a Wagner MC71258, Bendix 11323 or Raybestos MC36221. It'll bolt right in place of your existing single-pot master, and your existing pushrod will fit and work correctly. You'll need a distribution (splitter) block; this can be had used from any A-body with 4-wheel drums, '67-up, but probably easiest to get it new from Inline Tube for $35. You'll need to run dual hardlines from the new master to the splitter block. Be sure to bend at least one fully-circular loop in each of them to let them flex with vehicle motion without work-hardening and becoming brittle. Steel line is standard and is a pain to work with; Cunifer is a lot easier (and better).

Decide whose opinion you agree with on brake fluid (see thread here), bench-bleed the master cylinder before you install it, bleed the brakes when you're done, and you're all set.

Thanks! With that I have ordered the parts and they are on the way. Thanks again.