Menu

Shop

Garage

Cart

Account

Product Summary

Universal Fit, Disc/Drum Brake System Type

  • Compact 7" diameter booster allows for installation under the floor or on a firewall of almost any vehicle
  • Dual diaphragm booster design increases booster performance especially on lower vacuum engines
  • 1" bore dual outlet master cylinder effectively operates modern disc brake systems
  • 3/8"-24 IFF outlets on the master cylinder allows common 3/16" brake lines to connect directly to it without the need for adapters
  • All new components for long life and hassle free braking

Comes as a Kit

Key Specs

MFG. Part #91031411
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter7 Inch
Master Cylinder MaterialSteel

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Details

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. 

Specs

  • 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

Specifications

KEY SPECS
MFG. Part #91031411
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter7 Inch
Master Cylinder MaterialSteel
GENERAL
Brake Booster TypeVacuum Diaphragm Dual
Outlet CountTandem/Both Sides
Outlet Fitting3/8"-24 (4)
Master Cylinder Bore Size1 Inch
Brake Booster MaterialSteel
Overall Length13.25"
Master Cylinder Port Sizes3/8"-24 IFF
Bolt Hole Pattern3.38" x 3.38"
Centerline of Holes3.38"
Reservoir IncludedYes
Sold in QuantityKit