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Manley Titanium Valves 11431T-8 Valves, Intake, Titanium, 1.600 in. Diameter, .342 in. Stem, 5.260 in. Length, Universal, Set of 8

SKU: MAN11431T-8

Valves

Manley Titanium Valves 11431T-8 Valves, Intake, Titanium, 1.600 in. Diameter, .342 in. Stem, 5.260 in. Length, Universal, Set of 8

SKU: MAN11431T-8

Valves
A$2,823.20
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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Description

Manley Titanium Valves are expertly designed to reduce valvetrain weight, improve efficiency, and excel in high-RPM applications. Lightweight yet incredibly strong, they enhance throttle response, power, and durability, making them the choice of performance enthusiasts and professional engine builders. Each valve features a one-piece forged titanium construction with superior grain flow to eliminate weak points and ensure long-term strength. State-of-the-art CNC machining and precision grinding deliver tight tolerances and consistent sealing for optimal engine performance. Crafted from premium titanium alloys, Manley valves achieve the perfect balance of hardness, ductility, and fatigue resistance under extreme temperatures. Every valve undergoes rigorous quality control and final inspection, guaranteeing unmatched reliability, precision, and consistency in the most demanding racing conditions. When performance matters, Manley Titanium Valves power the winners.

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-10-12 11:19:43

Features

  • Built for extreme RPM and aggressive cams
  • CNC machined for precision
  • Lightweight titanium reduces valvetrain mass and boosts efficiency
  • One-piece forged for strength
  • Premium alloys ensure durability
  • Rigorously inspected for reliability

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11431T-8
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Titanium Valves
Product Attributes - UPC
807298057712
Product Attributes - Valve Position
Intake
Product Attributes - Intake Valve Head Diameter (in.)
1.600 in.
Product Attributes - Intake Valve Head Diameter (mm)
40.640mm
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.)
5.260 in.
Product Attributes - Intake Overall Valve Length (mm)
133.604mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.290 in.
Product Attributes - Valve Tip Length (mm)
7.366mm
Product Attributes - Valve Material
Titanium
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
78
Product Attributes - Valve Seat Width (in.)
0.100 in.
Product Attributes - Quantity
Sold as a set of 8.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11431T-8
SFX Item ID 4930891
Supplier Item Code 4930891
Manufacturer SKU 11431T-8
Manufacturer UPC 807298057712

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1962
    Ending Year1969
    Engine TypeV8
    Engine Size5.4L/327
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1967
    Ending Year1968
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1967
    Ending Year2000
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyChevy small block Gen I
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block LA
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year1974
    Ending Year1980
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block LA
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year1975
    Ending Year1989
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block LA
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1962
    Ending Year1964
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyFord small block Windsor
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1963
    Ending Year1968
    Engine TypeV8
    Engine Size4.7L/289
    Engine FamilyFord small block Windsor
    Valve Installed Length0.400 in. over
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1969
    Ending Year1997
    Engine TypeV8
    Engine Size5.8L/351
    Engine FamilyFord small block Windsor
    Valve Installed Length0.400 in. over

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