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1973-87 Chevy Truck Hydro Boost Power Brake Booster with Wilwood Master Cylinder

1973-87 Chevy Truck Hydro Boost Power Brake Booster with Wilwood Master Cylinder
Hydro-Boost installation Instructions
Part #: HB-T7387WB
Weight: 30.00 lbs
Our price: $759.99
Master Cylinder
CA Prop 65 Warning - cancer and reproductive harm www.p65warnings.ca.gov

Our all new 1973-87 Chevy Truck Hydro Boost power brake booster kit generates 1000 to 1800psi to the calipers and is fitted with a Wilwood master cylinder and adjustable prop valve. The Hydro-Boost is powered by hydraulic pressure from the power steering pump. No small bore master cylinder required. Firewall and valve cover clearance is equivalent to a 7" diameter vacuum booster. It can use stainless braided hoses or rubber type and the firewall brackets are correct for 73-87 GM truck applications.

The Hydro Boost uses fluid pressure from the power steering pump. The average power steering pump puts out from 800psi to 1400psi. The Hydro-Boost® uses this to convert to pressure to apply against the master cylinder. The output of the Hydro-Boost is affected by three factors.

1. The pedal ratio. Recommended ratios 5:1 to 6:1.
2. Power steering pump pressure.
3. Master cylinder bore diameter. 

The hydraulic system must be clean once installed. Any residual metallic sediment laying in an old pump or steering box, will be floated up and through the system when the fluid comes through on start up. If any of this sediment lodges in the relief valve of the pump, there will be no pressure from the pump. This will result in hard steering and no power brakes. A filter or a new system is required to maintain any warranty.

Kit includes:
• Hydro Power brake booster
• 1.125" bore Wilwood master cylinder (available in black or bright finish)
• Wilwood Adjustable Prop valve (works with front disc and rear disc or drum brakes)
• Firewall Mounting brackets
• Prop valve bracket and lines
• Limited Lifetime Warranty

Steering hose hookup kits available in the Suggested Parts below. 
These are remanufactured Bosch Hydro-Boost units. Hydro-Boost® is a registered trademark of the Robert Bosch Corporation

Product fits: 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 Chevy and GMC Truck, Suburban, Blazer and Jimmy

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