1 1/8 bore master cylinder.


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By charliemccraney - 19 Years Ago
Does anyone know of a 1 1/8 bore, dual master cylinder with the ports to the driver side for the Ford bolt spacing?
By sundance241 - 19 Years Ago
You might try a granada 78 or 79  Master cylinder,  drum drum ...
By Duck - 19 Years Ago
Newer F350 +-
By charliemccraney - 19 Years Ago
It looks like the granada will be too small. The late model F-series have the ports on the passenger side.

I forgot to mention that I have discs up front. The company from which I purchased the conversion says that a late 60s 'vette master cylinder is the right size. I'll just make one of them fit.

Thanks for the leads!
By charliemccraney - 19 Years Ago
It looks like the maverick uses a 1 5/16" bore cylinder. It might be too big for a manual system.

The truck has an adapter to use the later 2 bolt master cylinders on a firewall with the 4 bolt mount pattern. I think this is stock on the early '60s trucks. I'm just going to make another adapter with a 2 bolt mount wide enough for the chevy master.



I believe the rear reservoir of the ford master is for the front brakes, and the front res. is for the rear brakes. I compared the Chevy to the Ford and it appears that the Chevy cylinder is the opposite based on the size of the reservoirs. Do any of you all know if the front res. of a chevy master is for the front brakes and the rear res. is for the rear brakes? I thought they were all the same. I haven't yet taken the time to research this.
By charliemccraney - 19 Years Ago
I think I found the answer in the tech section of MP Brakes. Front to front, rear to rear for the cylinder I will be using.
By charliemccraney - 18 Years Ago
I now of the master cylinder of which you speak. It is nice but I don't need to spend that much.

I made a mock-up of the plate out of some wood last night.

Here it is:



Stock Ford on the right for comparison.







I'll make the final product out of 1/4" steel in the next few days.
By GREENBIRD56 - 18 Years Ago
So what size is the piston in the GM master cylinder? Anything over an inch and you may need to change the pedal leverage ratio. Or do deep knee bends in your spare time. 

The Maverick (and Pinto) manual disc brake master cylinders have the ports on the driver side and they are 15/16 diameter (.9375). The 1 5/16 is someone's bad typing? I bought a brand new '72 Pinto part (which is exactly like the Granada / Maverick / etc.) for $20 in a Ford original box. I'm hoping the seals will still be good when the day comes to install the rascal.

  

By charliemccraney - 18 Years Ago
The GM master is 1-1/8." I've had a 1 1/8" Lincoln on it for the past few years. I could lock the brakes with that. I just need ports on the other side so that the brake lines do not interfere with valve cover removal.



Dan,

Does that 1-1/8" mustang master have the ports on the driver side?



Here's the progress:
By charliemccraney - 18 Years Ago
It's installed. I need to add some length to the push rod and bleed the brakes, but it is on.













That was the most challenging project I've done to the truck so far. It was quite easy. I'm working on an under the bed fuel cell install now.
By bird55 - 18 Years Ago
Fine job! I'd like to get one of those made for my tbird. I never have liked the way the 2 bolt master cylinder bolts to the existing 4 bolt original base. Those pictures make all the difference. Let me know if you want to make more?
By charliemccraney - 18 Years Ago
Thanks!

I would certainly consider making more. ECI Hotrod Brakes has a plate that adapts a 4 bolt Ford to a 2 bolt Ford. http://ecihotrodbrakes.com/master_cylinder_systems.html It's about half way down the page.

The one I made adapts the 4 bolt Ford to a 2 bolt Chevrolet. I have modeled it with CAD and I have a friend who has a CNC mill so production can be pretty easy.