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Manley Performance

Manley Performance

Manley Severe Duty Pro Flo Series Stainless Steel Valves 11783-1 VALVE-SB CHRY R/M 1.625

SKU: MAN11783-1

Valves
Manley Severe Duty Pro Flo Series Stainless Steel Valves 11783-1 VALVE-SB CHRY R/M 1.625
Manley Performance

Manley Performance

Manley Severe Duty Pro Flo Series Stainless Steel Valves 11783-1 VALVE-SB CHRY R/M 1.625

SKU: MAN11783-1

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 Severe Duty Pro Flo Series intake and exhaust 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 fully machined and swirl polished, and offer improved flow with undercut "Pro Flo" stems. Many size options are available, for applications from 1955 and up.

Part Type

Valves

Data: v4.2 - Upd: 2026-10-14 10:12:07

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11783-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Severe Duty Pro Flo Series Stainless Steel Valves
Product Attributes - UPC
807298042947
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 individually.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11783-1
SFX Item ID 4927370
Supplier Item Code 4927370
Manufacturer SKU 11783-1
Manufacturer UPC 807298042947

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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