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Product Summary

Firewall Position, Disc/Drum Brake System Type, Natural

  • Bolt on dual master cylinder kit updates mid-50s Ford car single reservoir brake system for safer operation
  • Designed to compliment front disc brake upgrades by providing a separate reservoir and fluid path for the disc brakes
  • Ford-style 1-inch bore master cylinder feeds a OE-style Ford brass proportioning valve for disc/drum brakes
  • Fits many popular mid-50s Ford passenger cars including the '55-'57 Thunderbird with no cutting or modifications to your car
  • Complete kit includes pre-made braided AN brake hoses, mounting brackets, heat shield, and all attaching hardware
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Key Specs

MFG. Part #91032008
BrandSpeedway Motors
Master Cylinder Bore Size1 Inch
Master Cylinder MaterialCast Iron
FinishNatural
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91032008 Details

  • Updates single bowl master cylinder to dual reservoir master cylinder
  • Perfect for use with front disc brake conversion and OE rear drum brakes
  • 1-inch bore master cylinder provides correct stopping power for front disc brakes
  • Easy to service master cylinder use standard Ford style cap and wire bail retainer
  • Includes disc/drum fixed proportioning valve with custom mounting bracket
  • Stainless steel heat shield provides thermal protection to dual master cylinder
  • Kit bolts on with no modification to firewall and includes fasteners and brake lines

Make Your Front Disc Brake Conversion Go Smoothly with Our Dual Master Cylinder Kit

When you’ve finally had enough of your finicky front drum brakes on your ’50s Ford car sticking, chattering, fading, or even pulling to one side, you know the best answer is a front disc brake conversion. Adding front disc brakes to your ’54-’56 Ford car, including the venerable ’55-’57 Thunderbird, vastly improves your classic Ford’s braking performance and stability in high speed or panic braking situations. Our 11-inch disc brake conversion kit for these cars is the perfect solution at the wheel, but in the past, you’ve had to rely on the original single reservoir master cylinder, which is far from optimal for disc brake usage, or cobble together your own dual reservoir master cylinder conversion kit from multiple sources. We’ve solved this dilemma with our bolt-in single to dual master cylinder conversion kit.

A Bolt-In Dual Bowl Master Cylinder to Optimize Your Front Disc Brake Conversion

Using a standard steel Ford-style 1-inch dual reservoir master cylinder with wire bail retained lid as the basis for this kit, our dual master cylinder not only provides the proper line pressures for front disc brakes, but also splits the front and rear brake systems, providing safer operation over the factory “all or nothing” single bowl master cylinder. The dual master cylinder is direct bolt on with zero modifications required to your Ford’s firewall. We provide a powder coated 10-gauge steel reinforcement panel in the kit that mounts to the firewall and retains the use of all four factory mounting holes for strength. This helps spread the load to the four factory mounting locations, reducing stress on the firewall’s sheetmetal.

Also included in the kit is a powder coated mounting bracket to neatly mount the included Ford-style proportioning valve adjacent to the dual reservoir master cylinder. Braided AN -3 PTFE lined brake hoses are included, along with adapter fittings and banjo fittings for the dual reservoir master cylinder, to connect the lines from the dual master cylinder to the proportioning valve and from the proportioning valve to the vehicle’s hard lines. A .060-inch thick stainless steel heat shield is included as well that quickly mounts via the master cylinder’s inboard fasteners to keep engine and exhaust heat away from the master cylinder’s fluid reservoir. All mounting fasteners for the single to dual master cylinder conversion and proportioning valve are included as well.

Enjoy The Drive Knowing You Have Brakes That Can Handle Today’s Traffic

Our dual reservoir master cylinder conversion kit, when combined with a front disc brake upgrade, becomes the perfect solution to enjoy driving your ’54-’56 Ford or ’55-’57 “Baby Bird” in today’s traffic. Modern road speeds, inattentive drivers, and more all mean you must have a braking system that is up to the task. Knowing that when you indeed need to step on the brakes you shouldn’t have to wonder if the brakes are going to throw you into the next lane, shake your fillings out, or simply just not stop you in time. A dual master cylinder is a real necessity today and our dual reservoir master cylinder conversion kit makes it an easy process so you can enjoy your ’50s era Ford car without worry, and that’s what we all want when we hit the road in our classics.

Speedway Motors 91032008 Specifications

KEY SPECS
MFG. Part #91032008
BrandSpeedway Motors
Master Cylinder Bore Size1 Inch
Master Cylinder MaterialCast Iron
FinishNatural
GENERAL
PositionFirewall
Brake System TypeDisc/Drum
Outlet CountTandem
Reservoir TypeIntegral
Reservoir IncludedYes
Number of Mounting HolesTwo
Master Cylinder Cap IncludedYes
Master Cylinder Bail TypeSingle Bail
Master Cylinder Built-In Residual ValvesYes
Hardware IncludedYes
Pushrods IncludedYes
Mounting Bracket IncludedYes
Overall Length7.25"
Overall Width3"
Overall Height5.25"
Mounted Length3.25"
Centerline of Holes3.25"
Sleeve MaterialSteel
Sold in QuantityKit
NotesMaster cylinder port flare fitting seats must be removed before assembling and installing banjo fittings
Bowl DesignDual
Connector For Warning LightYes
Master Cylinder UsageBrake
Outlet QuantityTwo
Remote ReservoirNo
Proportioning Valve MaterialBrass
Pushrod IncludedYes
Bracket ColorBlack
Bracket IncludedYes

Ratings & Reviews

4.8

8 Reviews

Overall Assessment

Customers appreciate the product's overall quality, comprehensive selection of parts, and well-designed layout. They remarked on the usefulness of the kit in facilitating easy installations, specifically on a '55 Thunderbird, without requiring substantial modifications. The product's feature of adding a dual master cylinder around the battery and hood latch received particular recognition. There were minimal additional purchases needed, indicating the kit's practicability. Some minor issues were noted with removing and reinstalling certain parts, but the product was still considered worthy of repurchase. Overall, customers recommended the product due to its distinct advantages over the competition.

4.8

8 reviews

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Great Product

5.0

24 days ago

DEALME

Indiana

Verified

I upgraded the brakes on my '55 Fairlane and opted for this dual reservoir master cylinder replacement. The installation was rather easy, with the only real issues being that I had to modify the included mounting bracket for the proportioning valve and install a new pressure switch for the brake lights in order to not have to modify my existing wiring. My only suggestion would be to add a diagram / drawing of the proportioning valve internal construction. That would have saved some time hunting them down in order to properly attach a new pressure switch

Would Recommend

yes

5.0

a month ago

cookyman

riverside ca.

Verified

as always, speedway motors is my go to place for parts as needed to complete or improve my project. thanks guys.

Would Recommend

Great value

3.0

7 months ago

Slick

South Australia

Verified

Kit was comprehensive and good quality, however, the master cylinder went rusty a week after fitting it. After making hard lines for it, not only is it a big job to take off and paint, all the brakes need bleeding again.

Would Recommend

Would use again

5.0

11 months ago

Mark

Las Vegas

Verified

Installed this kit on my 55 Tbird. Well designed and easy install. Very satisfied with performance after 600 miles of city and highway driving.

Would Recommend

Yes I would purchase again.

5.0

a year ago

Bib

Monclova ohio 43542

Verified

On a 56 ford customline with a stroked FE to445. Needed the safety of the dual cylinder and the disc brake kit which I also purchased.

Yes

5.0

a year ago

bustedknuckle

pueblo co

Verified

This kit is very easy to install and looks great. No modifications needed to make everything fit. Came with all hoses,bolts,and easy to follow instructions.

Would Recommend

Nice setup, only one of it's kind I could find

5.0

a year ago

Nick

NJ

Verified

Used this on a '55 Thunderbird, I was really happy with how complete the kit is, and it seems really well thought out. Made installing a dual master cylinder around the battery and hood latch a breeze.

Would Recommend

I would buy this kit again.

5.0

2 years ago

Tjh928

Illinois

Verified

Pretty good selection of parts in kit,no permanent mods needed. I only had to buy one fitting. Hardest part is getting the master cylinder pushrod bolt and nut removed and reinstalled, removing the seat and or steering wheel might be an option next time.

Would Recommend

Showing 8 of 8 reviews

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