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Manley Race Series Stainless Steel Valves 11578-1 Valve, Intake, Steel, 1.850 in. Diameter, .342 in. Stem, 5.075 in. Length, Ford, Each

SKU: MAN11578-1

Valves

Manley Race Series Stainless Steel Valves 11578-1 Valve, Intake, Steel, 1.850 in. Diameter, .342 in. Stem, 5.075 in. Length, Ford, Each

SKU: MAN11578-1

Valves
A$71.27
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 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

Valves

Data: v4.2 - Upd: 2026-10-14 10:11:19

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11578-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Race Series Stainless Steel Valves
Product Attributes - UPC
807298050546
Product Attributes - Valve Position
Intake
Product Attributes - Intake Valve Head Diameter (in.)
1.850 in.
Product Attributes - Intake Valve Head Diameter (mm)
46.990mm
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.)
5.075 in.
Product Attributes - Intake Overall Valve Length (mm)
128.905mm
Product Attributes - Undercut Stem
Yes
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.395 in.
Product Attributes - Valve Tip Length (mm)
10.033mm
Product Attributes - Valve Material
NK-842 stainless steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
105
Product Attributes - Valve Head Style
5 degree dish
Product Attributes - Valve Seat Width (in.)
0.080 in.
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Designed for use with rail type rocker arms.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11578-1
SFX Item ID 4928242
Supplier Item Code 4928242
Manufacturer SKU 11578-1
Manufacturer UPC 807298050546

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1962
    Ending Year1964
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyFord small block Windsor
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1963
    Ending Year1968
    Engine TypeV8
    Engine Size4.7L/289
    Engine FamilyFord small block Windsor
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1968
    Ending Year2001
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyFord small block Windsor
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1969
    Ending Year1997
    Engine TypeV8
    Engine Size5.8L/351
    Engine FamilyFord small block Windsor
    Valve Installed LengthStock

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