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Manley Performance

Manley Performance

Manley Severe Duty Series Stainless Steel Valves 11887-1 Valve, Intake, XH-428 Stainless, 1.500 in. Head Diameter, 5.036 in. Length, Chevy, Small Block, Each

SKU: MAN11887-1

Valves
Manley Severe Duty Series Stainless Steel Valves 11887-1 Valve, Intake, XH-428 Stainless, 1.500 in. Head Diameter, 5.036 in. Length, Chevy, Small Block, Each
Manley Performance

Manley Performance

Manley Severe Duty Series Stainless Steel Valves 11887-1 Valve, Intake, XH-428 Stainless, 1.500 in. Head Diameter, 5.036 in. Length, Chevy, Small Block, Each

SKU: MAN11887-1

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 Severe Duty series performance valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are made of superior materials, are fully machined and swirl polished, and are available with either undercut "Pro Flo" stems or straight stems.

Part Type

Valves

Data: v4.2 - Upd: 2026-10-14 10:06:56

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11887-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Severe Duty Series Stainless Steel Valves
Product Attributes - UPC
807298054803
Product Attributes - Valve Position
Intake
Product Attributes - Intake Valve Head Diameter (in.)
1.500 in.
Product Attributes - Intake Valve Head Diameter (mm)
38.100mm
Product Attributes - Intake Valve Stem Diameter (in.)
0.342 in.
Product Attributes - Intake Valve Stem Diameter (mm)
8.69mm
Product Attributes - Intake Overall Valve Length (in.)
5.036 in.
Product Attributes - Intake Overall Valve Length (mm)
127.914mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.250 in.
Product Attributes - Valve Tip Length (mm)
6.350mm
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)
94
Product Attributes - Valve Head Style
10 degree dish
Product Attributes - Valve Seat Width (in.)
0.085 in.
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11887-1
SFX Item ID 4932243
Supplier Item Code 4932243
Manufacturer SKU 11887-1
Manufacturer UPC 807298054803
Alternative References XH-428

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1955
    Ending Year1957
    Engine TypeV8
    Engine Size4.3L/265
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1957
    Ending Year1967
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1958
    Ending Year1958
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1964
    Ending Year1967
    Engine TypeV8
    Engine Size5.4L/327
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine Size4.9L/302
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1967
    Ending Year2002
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1968
    Ending Year1973
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1975
    Ending Year1976
    Engine TypeV8
    Engine Size4.3L/262
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1976
    Ending Year2002
    Engine TypeV8
    Engine Size5.0L/305
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1979
    Ending Year1982
    Engine TypeV8
    Engine Size4.4L/267
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.100 in. over
    Cylinder Head TypeStock configuration

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