Hi all
I use a Chrysler Corp. dual iron master cylinder (4-bolt) together 
with a modern servo.
I use the the lower model without oil level glass
I think it is for a Dart -68
Partnumber (Identification number) is MC 36221 (United Brake System 
or Raybestos), maybe this number
is valid for other suppliers
I
Search the number on internet
I even use this master cylinder in my Studebaker coupe -55 ( 
converted with modern brake pedal to)
 Our earlier cars, Imperial 59, Dodge 59 works great with  this 
master cylinder
Right know I convert our Dodge 880 Custom 62 with a dual brake system.
Comments?
//Anders E /Sweden
At 22:06 2009-08-19, you wrote:
Please excuse for butting in, but what would be a recmmendation for 
a 64 Dodge 440 converting to disc brakes front- drum brakes rear 
without power boost? Of course dual reservoir Thanks for a 
reply,,,,,,,,,,,,,,,,,,,,,,,,MO
----- Original Message ----- From: "Dan McCormack" <mcwheels@xxxxxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Wednesday, August 19, 2009 12:06 PM
Subject: Re: master cylinder bore size
Dave has given you correct information Chris. That's why cars with 
power brakes "usually" have a larger bore MC. Personally I would 
stick with the 4 bolt iron MC which is a direct bolt on. The newer 
2 bolt style will require an adaptor. If you have power brakes now 
then just ask for a 67 Chrysler MC with Power drum brakes. If you 
have manual brakes then ask for a 67 Chrysler MC with manual drum brakes.
Dan
PS I would also ask for a brand new MC. I've not had good luck 
with rebuilt MC's.
----- Original Message ----- From: "Dave Casey" <dcasey@xxxxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Tuesday, August 18, 2009 11:49 PM
Subject: Re: master cylinder bore size
Pressure = Force / Area
A larger bore means more area, so less hydraulic pressure in the 
system from the froce of your foot. A bigger bore also means more 
fluid displaced for a given amount of pedal travel.
In simple terms: a bigger bore master cylinder means you will 
have a stiffer pedal, but will require more pedal effort than a 
smaller bore to get the same braking.
Dave Casey
Sent from my PC
----- Original Message ----- From: "c.davis" <pngkid@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Tuesday, August 18, 2009 10:41 PM
Subject: master cylinder bore size
I am replacing the single pot master in my '65 300L with a dual 
for drum brakes. Is bigger better as far as bore size? What 
about power vs. manual? Should I swap to a newer style aluminum 
or stick with the iron 4 bolt?
Thanks you guys have always been a fountain of knowledge,
Chris in Alabama
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practice will protect your privacy, reduce the total volume of mail 
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Please address private mail -- mail of interest to only one person 
-- directly to that person.  I.e., send parts/car transactions and 
negotiations as well as other personal messages only to the intended 
recipient, not to the Clubhouse public address. This practice will 
protect your privacy, reduce the total volume of mail and fine tune 
the content signal to Mopar topic.  Thanks!
'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.