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Manley Race Series Stainless Steel Valves 11788-1 Valves, Intake, NK-842 Stainless, 2.400 in. Head Diameter, 5.570 in. Length, Ford, 429 Boss, Set of 8

SKU: MAN11788-1

Valves

Manley Race Series Stainless Steel Valves 11788-1 Valves, Intake, NK-842 Stainless, 2.400 in. Head Diameter, 5.570 in. Length, Ford, 429 Boss, Set of 8

SKU: MAN11788-1

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 10:08:35

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11788-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Race Series Stainless Steel Valves
Product Attributes - UPC
807298050737
Product Attributes - Valve Position
Intake
Product Attributes - Intake Valve Head Diameter (in.)
2.400 in.
Product Attributes - Intake Valve Head Diameter (mm)
60.960mm
Product Attributes - Intake Valve Stem Diameter (in.)
0.372 in.
Product Attributes - Intake Valve Stem Diameter (mm)
9.50mm
Product Attributes - Intake Overall Valve Length (in.)
5.570 in.
Product Attributes - Intake Overall Valve Length (mm)
141.478mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.350 in.
Product Attributes - Valve Tip Length (mm)
8.890mm
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)
143
Product Attributes - Valve Head Style
7 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 man11788-1
SFX Item ID 4930810
Supplier Item Code 4930810
Manufacturer SKU 11788-1
Manufacturer UPC 807298050737
Alternative References NK-842

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeFORD
    Beginning Year1969
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/429
    Engine FamilyFORD BOSS 429 V8 GAS
    Valve Installed LengthStock
    Cylinder Head TypeStock configuration

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