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Manley Chrysler Small Block Severe Duty Exhaust Valves 1.625in Head .3715in Stem (Set of 8)

SKU: MAN11783-8

Valves

MAN Severe Duty Valves...

Manley Chrysler Small Block Severe Duty Exhaust Valves 1.625in Head .3715in Stem (Set of 8)

SKU: MAN11783-8

Valves

MAN Severe Duty Valves...

A$384.44
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 Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-10-13 17:06:33

Features

  • Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
  • Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
  • Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
  • Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
  • Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11783-8
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Severe Duty Pro Flo Series Stainless Steel Valves
Product Attributes - UPC
807298042954
Product Attributes - Valve Position
Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.)
1.625 in.
Product Attributes - Exhaust Valve Head Diameter (mm)
41.275mm
Product Attributes - Exhaust Valve Stem Diameter (in.)
0.372 in.
Product Attributes - Exhaust Valve Stem Diameter (mm)
9.45mm
Product Attributes - Exhaust Overall Valve Length (in.)
4.970 in.
Product Attributes - Exhaust Overall Valve Length (mm)
126.238mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.225 in.
Product Attributes - Valve Tip Length (mm)
5.715mm
Product Attributes - Valve Material
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
9 degree dish
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 man11783-8
SFX Item ID 4061530
Supplier Item Code 4061530
Manufacturer SKU 11783-8
Manufacturer UPC 807298042954
Alternative References 1.625in, .3715in

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year1971
    Ending Year1980
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year1975
    Ending Year1989
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1964
    Ending Year1969
    Engine TypeV8
    Engine Size4.5L/273
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1968
    Ending Year1973
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1968
    Ending Year1991
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1971
    Ending Year1991
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1992
    Ending Year2003
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block Magnum
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year1992
    Ending Year2003
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block Magnum
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeJEEP
    Beginning Year1993
    Ending Year1998
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block Magnum
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakeJEEP
    Beginning Year1998
    Ending Year1998
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block Magnum
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakePLYMOUTH
    Beginning Year1964
    Ending Year1969
    Engine TypeV8
    Engine Size4.5L/273
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakePLYMOUTH
    Beginning Year1968
    Ending Year1973
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakePLYMOUTH
    Beginning Year1968
    Ending Year1989
    Engine TypeV8
    Engine Size5.2L/318
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration
  • Valve FitmentSearch by engine
    MakePLYMOUTH
    Beginning Year1971
    Ending Year1983
    Engine TypeV8
    Engine Size5.9L/360
    Engine FamilyMopar small block LA
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration

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