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Dual or Single Master Cylinder...

brian.linn

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I need some advice on this. I put disc brakes on my Belvedere and now need a new Master Cylinder... I will be around 500hp-600hp with this motor I put in. Would a single m/c work or do I need to upgrade to a dual? I read an article about Bob Mosher talking about using all single m/c in all his cars, from his daily driver to his race car... What's this thinking on this subject?
 
Duel is safer, That is the reason they made them im sure. If you break a line in the front or back with a single you could be in trouble, with the double you brake one in front, you still have rear brakes, back line breaks, you still have front ones..
 
I think i put a 69 -70 Chrysler dual m/c on mine ,your parts store should know,and with disc brakes ,you will need a porportioning valve,hope i spelt it properly.
 
Unless your car is a numbers matching trailer queen, go with a dual for safety reasons.
 
I had a 66 Satellite with single pot master, blew a wheel cylinder on the freeway in downtown Fort Worth. Limped it home using the parking brake and downshifting the tranny sweating it all the way. Found a 67 in a boneyard and swapped the dual master cylinder, proportioning valve, etc. into my 66. Do it! It scares me to see high HP cars with outdated brakes.
 
Mine is for a 67 B-body car. You definetly want to go with a dual M/C. Your life is worth it. You can see mine here and it needs to be painted before I put it in that indoor car show I was invited too. Ron


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Deff dual. I did the whole set up from SSBC. Great kit. I am sure you can buy the master seperate. No reason to keep the suicide single in there with that much HP.
 
I used cardone part # 10-1404 master cylinder on my 66 belve with disk brakes and it works great. I used this master of several b-body disk brake conversions. It's cheap and available at your local auto parts store and works great.

There is a reason they call the single line master a suicide master.
 
I hear ya ron,coupla rattle cans:eusa_shifty:
 

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Alright fella's, I just started prepping to put the Cardone 10-1404 master cylinder, what do I use for the pedal rod? Suggestions?
 
MC push rod...

No. Unless I disassmble the original.... Is the original able to be taken apart?

Brian, the rod is held in by a 1/4" rubber washer and, with enough force, it will simply pull out of your old MC. Sometimes, removal can destroy the washer, so spray some penetrating fluid, or something slippery into the bore where the shaft is located, and gently twist as you pull the rod from the MC

Be sure the rubber washer is in good condition when you reinstall it into the new MC.

Also, you cannot run a single reservoir MC with disc brakes. There's not enough capacity once the front pads start to wear and the pistons are extended in their bore. The net effect could result in a dry MC and mopar carnage.

Singles are for drums and dual units are specifically made to accomodate the discs, which displace much more fluid that the small wheel cylinders used on drum assemblies.

Southernman
 
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