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#91035556
1955-57 Chevy Car Disc/Drum Brake Booster Master Cylinder Combo
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14 Questions
- Kit contains a 1" bore master cylinder with 1/2"-20 and 9/16"-18 outlets, 8" dual diaphragm booster, and a disc/drum combination valve
- Also includes line to connect the prop/metering block to the master cylinder and the necessary hardware to mount the booster to your original 55-57 Chevy brake pedal
- Measures 14-1/4" from firewall bracket to end of master cylinder
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$283.99
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Product Summary
55-57 Chevy, Disc/Drum Brake System Type
- Kit contains a 1" bore master cylinder with 1/2"-20 and 9/16"-18 outlets, 8" dual diaphragm booster, and a disc/drum combination valve
- Also includes line to connect the prop/metering block to the master cylinder and the necessary hardware to mount the booster to your original 55-57 Chevy brake pedal
- Measures 14-1/4" from firewall bracket to end of master cylinder
- Includes proportioning/metering valve with bracket to bolt directly to master cylinder
- Upgrades the brake system on your Tri-5 Chevy car to match upgraded disc brakes
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Key Specs
| MFG. Part # | 91035556 |
| Brand | Speedway Motors |
| Brake System Type | Disc/Drum |
| Brake Booster Diameter | 8 Inch |
| Master Cylinder Material | Steel |
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Speedway Motors 91035556 Details
When you put modern front disc brakes on your 55-57 Chevy car, you should update the master cylinder as well. The stock 55-57 drum brake master cylinder does not have the capacity to supply the proper amount of pressure for front disc brakes. This simple bolt-on power brake assembly will ensure your brakes are operating at peak performance.
- Kit contains a 1" bore master cylinder with 1/2"-20 and 9/16"-18 outlets, 8" dual diaphragm booster, and a disc/drum combination valve (provides proportioning and metering).
- Also includes line to connect the prop/metering block to the master cylinder and the necessary hardware to mount the booster to your original 55-57 Chevy brake pedal.
- Measures 14-1/4" from firewall bracket to end of master cylinder.
- Includes proportioning/metering valve
Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.
Guides & Documents
Speedway Motors 91035556 Specifications
Speedway Motors 91035556 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91035556 |
| Brand | Speedway Motors |
| Brake System Type | Disc/Drum |
| Brake Booster Diameter | 8 Inch |
| Master Cylinder Material | Steel |
| GENERAL | |
| Brake Booster Type | Vacuum Diaphragm Dual |
| Outlet Count | Tandem |
| Master Cylinder Bore Size | 1 Inch |
| Brake Booster Material | Steel |
| Mounted Length | 14.25" |
| Master Cylinder Port Sizes | 1/2"-20 & 9/16"-18 IFF |
| Bolt Hole Pattern | 3.38" x 3.38" |
| Centerline of Holes | 3.38" |
| Proportioning Valve Included | Yes |
| Reservoir Included | Yes |
| Sold in Quantity | Kit |
| Notes | Includes master cylinder, booster, and proportioning valve. |