Dual 7 Inch Brake Booster Master Cylinder Combo, 1 Inch Bore
Build Your KitYou're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
Compact 7" dual diaphragm booster assembly for installation under floor or on firewall of almost any vehicle. Cast iron master cylinder has a 1" bore and is suited for disc-disc or disc-drum combinations.
Master cylinder features two 3/8"-24 inverted flare ports on each side (plugs are included for ports not in use).
Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.
- Pushrod-to-mounting flange is 5-1/2"
- Four bolts on 3-3/8" centers
- 5" thick from master cylinder mount to firewall face
- 4" long firewall mount face to end of pushrod
- Pushrod stud is 3/8" fine thread
- (4) qty 3/8"-24 outlet ports (2 plugs included)
- 8" from mount to outer edge
What's In The Kit
Speedway Dual Diaphragm Power Brake Booster, 7 Inch, Chromate FinishPart # 91031432Qty x 1
Universal Power/Manual Master Cylinder, 1 Inch BorePart # 91031445Qty x 1
More Like This
Dual 8 Inch Brake Booster Master Cylinder Combo, 1 Inch Bore
Single 7 Inch Brake Booster Master Cylinder Combo, 1 Inch Bore
Dual Diaphragm Stainless Booster Master Cylinder Combo
Single Diaphragm Chrome Booster Master Cylinder Combo
Single 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
Dual 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
Dual 8 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore
1964-1974 GM Disc Brake Booster Conversion Kit Combo
1955-57 Chevy Car Disc/Drum Brake Booster Master Cylinder Combo
1958-64 Chevy Full-size Car Brake Booster Combo, Disc/Drum
Q & A
Tim talks about brake booster adjustment.
We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
Tim demonstrates the brake assembly with a Wide 5 drum brake and Speedway's new self-energizing backing plate.