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Manley Extreme Duty Series Stainless Steel Valves 11520-1 Valve, Intake, Steel, 2.190 in. Diameter, .372 in. Stem, 5.218 in. Length, Chevy, Each

SKU: MAN11520-1

Valves

Manley Extreme Duty Series Stainless Steel Valves 11520-1 Valve, Intake, Steel, 2.190 in. Diameter, .372 in. Stem, 5.218 in. Length, Chevy, Each

SKU: MAN11520-1

Valves
A$108.05
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.
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Description

Manley Extreme Duty Series performance steel valves are a great choice for supercharged, alcohol-burning, or high-revving engines. These engines generate a lot of heat and require special valves that can handle that kind of punishment. All valves are made from the best stainless steel available, with chrome stems and hardened valve tips. Extreme Duty Series valves are swirl-polished and fully machined and available with either undercut heads or straight stems.

Part Type

Valves

Data: v4.2 - Upd: 2026-10-14 10:08:09

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11520-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Extreme Duty Series Stainless Steel Valves
Product Attributes - UPC
807298049434
Product Attributes - Valve Position
Intake
Product Attributes - Intake Valve Head Diameter (in.)
2.190 in.
Product Attributes - Intake Valve Head Diameter (mm)
55.626mm
Product Attributes - Intake Valve Stem Diameter (in.)
0.372 in.
Product Attributes - Intake Valve Stem Diameter (mm)
9.50mm
Product Attributes - Intake Overall Valve Length (in.)
5.218 in.
Product Attributes - Intake Overall Valve Length (mm)
132.537mm
Product Attributes - Undercut Stem
Yes
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
NK-844 stainless steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
145
Product Attributes - Valve Head Style
7 degree dish
Product Attributes - Valve Seat Width (in.)
0.080 in.
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11520-1
SFX Item ID 4931298
Supplier Item Code 4931298
Manufacturer SKU 11520-1
Manufacturer UPC 807298049434

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 LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine Size6.6L/402
    Engine FamilyChevy big block Mark IV
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen V
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen VI
    Valve Installed LengthStock

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