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Wilwood Proportioning Valve - GM Style Fixed w/ Delay (Metering Valve)

SKU: WIL260-11322

Brake Proportioning Valves and Distribution Blocks

WIL Proportioning Valve

Wilwood Proportioning Valve - GM Style Fixed w/ Delay (Metering Valve)

SKU: WIL260-11322

Brake Proportioning Valves and Distribution Blocks

WIL Proportioning Valve

A$218.21
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

Wilwood's GM style proportioning valve is a direct replacement for 1978 and newer General Motors vehicles equipped with front disc / rear drum brakes. Manufactured from high quality aluminum and coated with a durable black anodized finish. Line connections for the valve, if mounted in the OE location, Will allow the original lines to connect directly to the valve. If mounted in a non-OE location, fluid lines may have to be modified. This also does allow usage in other non-GM vehicles. This proportioning valve offers: 63% pressure reduction (rear) after 350 PSI knee point. A 30 PSI delay rear-to-front circuit and circuit failure sender activation at 50 ± 10 PSI. A Recommended maximum operating pressure: 2000 PSI. Non-adjustable front-to-rear proportioning (knee point, rate, etc.) and Anti-dive or metering delay valve: Enables rear brake pressure to build momentarily before front brake pressure builds.

Part Type

Brake Proportioning Valves and Distribution Blocks

Data: v4.2 - Upd: 2026-10-13 15:15:00

Specifications

Product Attributes - UPC
889545066791
Product Attributes - Brand
Wilwood Disc Brakes
Product Attributes - Notes
Features one 1/2-20 in. inverted flare and one 7/16-24 in. inverted flare inlets, one 3/8-24 in. inverted flare and one 9/16-18 in. inverted flare outlets. Direct replacement for 1978 and newer General Motors vehicles equipped with front disc / rear drum brakes.
Product Attributes - Quantity
Sold individually.
Product Attributes - Part Type
Brake Proportioning Valves and Distribution Blocks
Product Attributes - Product Line
Wilwood Brake Proportioning Valves
Product Attributes - Inlet Quantity
2
Product Attributes - Outlet Quantity
2
Product Attributes - Adjustment Style
None
Product Attributes - Inlet Attachment
Female threads
Product Attributes - Outlet Attachment
Female threads
Product Attributes - Brake Line Inlet Size
1/2 in.-20 inverted flare
Product Attributes - Brake Line Outlet Size
3/8 in.-24 inverted flare
Product Attributes - Maximum Pressure (psi)
2,000 psi
Product Attributes - Minimum Pressure (psi)
100 psi
Product Attributes - Pressure Reduction (%)
63 percent
Product Attributes - Brake Line Inlet Size 2
7/16 in.-24 inverted flare
Product Attributes - Brake Line Outlet Size 2
9/16 in.-18 inverted flare
Product Attributes - Manufacturer's Part Number
260-11322
Product Attributes - Proportioning Valve Finish
Black anodized
Product Attributes - Connector For Warning Light
Yes
Product Attributes - Proportioning Valve Material
Aluminum

Reference Information

Brand Name/s Wilwood
StreetFX SKU wil260-11322
SFX Item ID 4403830
Supplier Item Code 4403830
Manufacturer SKU 260-11322
Manufacturer UPC 889545066791

Compatibility

Application Data
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelBASE
    Beginning Year1978
    Ending Year1979
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelESTATE WAGON
    Beginning Year1982
    Ending Year1983
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelGNX
    Beginning Year1987
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelGRAND NATIONAL
    Beginning Year1984
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelLIMITED
    Beginning Year1978
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelLIMITED TURBO
    Beginning Year1982
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelSPORT
    Beginning Year1978
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelREGAL
    SubmodelT-TYPE
    Beginning Year1983
    Ending Year1986
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelBASE
    Beginning Year1978
    Ending Year1985
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelLIMITED EDITION
    Beginning Year1982
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelLUXURY
    Beginning Year1983
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelLXXV ANNIVERSARY EDITION
    Beginning Year1978
    Ending Year1978
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelS
    Beginning Year1979
    Ending Year1980
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelT-TYPE
    Beginning Year1981
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelRIVIERA
    SubmodelXX ANNIVERSARY EDITION
    Beginning Year1983
    Ending Year1983
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelSKYLARK
    SubmodelBASE
    Beginning Year1978
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelSKYLARK
    SubmodelLIMITED
    Beginning Year1980
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelSKYLARK
    SubmodelS
    Beginning Year1978
    Ending Year1979
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelSKYLARK
    SubmodelSPORT
    Beginning Year1978
    Ending Year1978
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeBUICK
    ModelSKYLARK
    SubmodelT-TYPE
    Beginning Year1983
    Ending Year1984
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelBERLINETTA
    Beginning Year1979
    Ending Year1986
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelIROC-Z
    Beginning Year1985
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelLT
    Beginning Year1987
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelSPORT
    Beginning Year1981
    Ending Year1987
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum
  • UniversalNo
    MakeCHEVROLET
    ModelCAMARO
    SubmodelZ28 INDIANAPOLIS 500 PACE CAR
    Beginning Year1982
    Ending Year1982
    Front Brake Type (application)Disc
    Rear Brake Type (application)Drum

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