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Manley Race Series Stainless Steel Valves 11525-1 Valve, Exhaust, Steel, 1.880 in. Diameter, .371 in. Stem, 5.474 in. Length, Chevy, Each

SKU: MAN11525-1

Valves

Manley Race Series Stainless Steel Valves 11525-1 Valve, Exhaust, Steel, 1.880 in. Diameter, .371 in. Stem, 5.474 in. Length, Chevy, Each

SKU: MAN11525-1

Valves
A$103.97
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Manley Race series performance valves are a great choice for your bracket, oval track, or high performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts are XH-426) with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race series valves are swirl polished and fully machined.

Part Type

BBC S/D 1.880in Exhaust Valve

Data: v4.2 - Upd: 2026-09-29 08:01:47

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11525-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Race Series Stainless Steel Valves
Product Attributes - UPC
807298049557
Product Attributes - Valve Position
Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.)
1.880 in.
Product Attributes - Exhaust Valve Head Diameter (mm)
47.752mm
Product Attributes - Exhaust Valve Stem Diameter (in.)
0.371 in.
Product Attributes - Exhaust Valve Stem Diameter (mm)
9.42mm
Product Attributes - Exhaust Overall Valve Length (in.)
5.474 in.
Product Attributes - Exhaust Overall Valve Length (mm)
139.065mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.220 in.
Product Attributes - Valve Tip Length (mm)
5.588mm
Product Attributes - Valve Material
XH-428 stainless steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
138
Product Attributes - Valve Head Style
7 degree dish
Product Attributes - Valve Seat Width (in.)
0.100 in.
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11525-1
SFX Item ID 4928694
Supplier Item Code 4928694
Manufacturer SKU 11525-1
Manufacturer UPC 807298049557

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
    Valve Installed Length0.100 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    Valve Installed Length0.100 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine Size6.6L/402
    Engine FamilyChevy big block Mark IV
    Valve Installed Length0.100 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    Valve Installed Length0.100 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen V
    Valve Installed Length0.100 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen VI
    Valve Installed Length0.100 in. over

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