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Disc brake conversion #2768394
04/26/20 12:08 PM
04/26/20 12:08 PM
Joined: Dec 2014
Posts: 16
quebec canada
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pitbull71 Offline OP
member
pitbull71  Offline OP
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Posts: 16
quebec canada
Hi I'm restoring a 1970 cuda 440, I am converting the front to disc breaks, I just want to know if anyone can tell my how many valves I need, what they are called and if anyone has any pictures of where they are located.

Thanks guys stay safe.

Re: Disc brake conversion [Re: pitbull71] #2768416
04/26/20 01:14 PM
04/26/20 01:14 PM
Joined: Nov 2003
Posts: 2,937
GA
roadrunninMark Offline
master
roadrunninMark  Offline
master

Joined: Nov 2003
Posts: 2,937
GA
You will at least need the disk/drum distribution valve. If you get the 70 version, you will need the "limiter" valve (forget what it is called) in the line that goes to the rear. If you go to inlinetube or finelines, you can order an entire kit for your car and it will come with all the valves. You just need to be clear with which one you want as the rear line will be different for a 70 since you add in the limiter valve. You can use the 71 and up style to get rid of it, 2 less connections to possibly leak and I think it might be better for balancing too. The distribution block has the necessary limiter in it.

Re: Disc brake conversion [Re: pitbull71] #2768463
04/26/20 05:04 PM
04/26/20 05:04 PM
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
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Rio Linda, CA
Typical '70 disc brake valves.

Disc Brake Valves.jpg

The INTERNET, the MISinformation superhighway
Re: Disc brake conversion [Re: John_Kunkel] #2768863
04/27/20 08:49 PM
04/27/20 08:49 PM
Joined: Jan 2003
Posts: 17,861
albany ny
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05dakota Offline
I Live Here
05dakota  Offline
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Posts: 17,861
albany ny
i used the stock drum valve and added an adjustable value in the rear line


5549 post on old board
Re: Disc brake conversion [Re: 05dakota] #2769031
04/28/20 10:35 AM
04/28/20 10:35 AM
Joined: Dec 2004
Posts: 2,368
Wheatfield, NY
Cuda340 Offline
top fuel
Cuda340  Offline
top fuel

Joined: Dec 2004
Posts: 2,368
Wheatfield, NY
Consult Dr. Diff https://www.doctordiff.com/ he has a kit all mopar. Some of the other use other brand parts. Refer to this as well: https://www.allpar.com/history/mopar/brakes/disc-main.html

Re: Disc brake conversion [Re: Cuda340] #2769360
04/29/20 07:29 AM
04/29/20 07:29 AM
Joined: Jun 2014
Posts: 1,321
VA
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dragon slayer Offline
pro stock
dragon slayer  Offline
pro stock
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VA
For 1970 B and E body the KH brake system single piston. Started with the 3 piece set up seen in the diagram. Later in production it became a two piece. So you can go either route, but get lines as needed for the setup you purchase. By 71 they were a single unit doing all three functions. You can see pic in the service manual.

Re: Disc brake conversion [Re: dragon slayer] #2769388
04/29/20 09:42 AM
04/29/20 09:42 AM
Joined: Dec 2004
Posts: 2,368
Wheatfield, NY
Cuda340 Offline
top fuel
Cuda340  Offline
top fuel

Joined: Dec 2004
Posts: 2,368
Wheatfield, NY
I did what Dr. Diff recommended. You use the factory lines for the drum brake car and use the one piece proportioning valve he sells, I inch bore master depending on how you want the pedal to feel. I also changed the rear wheel cylinders to I believe 7/8" (don't quote me). You wont need a rear line adjuster plumbed in. The system is well balanced, and is factory.

Re: Disc brake conversion [Re: roadrunninMark] #2773129
05/10/20 11:01 AM
05/10/20 11:01 AM
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quebec canada
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pitbull71 Offline OP
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pitbull71  Offline OP
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quebec canada
Thanks I will look into it. I know i had looked on the website of finelines and I did not see a complete kit I only saw the individual ones but I will try calling them thanks again. up

Re: Disc brake conversion [Re: pitbull71] #2773136
05/10/20 11:32 AM
05/10/20 11:32 AM
Joined: Jan 2003
Posts: 31,023
Oregon
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AndyF Offline
I Win
AndyF  Offline
I Win
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Joined: Jan 2003
Posts: 31,023
Oregon
Originally Posted by pitbull71
Hi I'm restoring a 1970 cuda 440, I am converting the front to disc breaks, I just want to know if anyone can tell my how many valves I need, what they are called and if anyone has any pictures of where they are located.

Thanks guys stay safe.


Between the FSM and a Master Parts Book you should be able to get a really good idea of how your car was equipped. I'd recommend always referring back to those two books during the restoration since aftermarket parts vary and descriptions are rarely correct.







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