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Manley Race Master Valves 11665B-1 Valve, Master, XH-426 Stainless Steel, Exhaust, 1.555 in. Diameter, 4.845 in. Length, Set of 8

SKU: MAN11665B-1

Valves

Manley Race Master Valves 11665B-1 Valve, Master, XH-426 Stainless Steel, Exhaust, 1.555 in. Diameter, 4.845 in. Length, Set of 8

SKU: MAN11665B-1

Valves
A$73.59
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 Master valves are designed and engineered to withstand the abuse of the track. Race Master valves are targeted by the bracket, drag, and oval track racers, or even those with modified street engines that are operating at engine speeds below 8,000 rpm. These valves are constructed from XH-426 material for the exhaust and NK-842 for the intake valves, making them the strongest valves in their class. Whether everything is on the line at the track, or you just enjoy your high performance car or motorcycle on the street, trust Race Master valves by Manley to keep you on the move. Order the model designed for your vehicle year/make and engine application.

Part Type

Valves

Data: v4.2 - Upd: 2026-10-14 10:09:06

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11665B-1
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Race Master Valves
Product Attributes - UPC
807298004907
Product Attributes - Valve Position
Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.)
1.555 in.
Product Attributes - Exhaust Valve Head Diameter (mm)
39.497mm
Product Attributes - Exhaust Valve Stem Diameter (in.)
0.313 in.
Product Attributes - Exhaust Valve Stem Diameter (mm)
7.95mm
Product Attributes - Exhaust Overall Valve Length (in.)
4.845 in.
Product Attributes - Exhaust Overall Valve Length (mm)
123.063mm
Product Attributes - Undercut Stem
No
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.120 in.
Product Attributes - Valve Tip Length (mm)
3.048mm
Product Attributes - Valve Material
XH-426 stainless steel
Product Attributes - Lock Groove Quantity
3-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Approximate Weight (g)
88
Product Attributes - Valve Head Style
20 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 man11665B-1
SFX Item ID 4930363
Supplier Item Code 4930363
Manufacturer SKU 11665B-1
Manufacturer UPC 807298004907
Alternative References XH-426

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeCHRYSLER
    Beginning Year2005
    Ending Year2008
    Engine TypeV8
    Engine Size5.7L/345
    Engine FamilyMopar Hemi Gen III
    Valve Installed LengthStock
  • Valve FitmentSearch by engine
    MakeDODGE
    Beginning Year2003
    Ending Year2008
    Engine TypeV8
    Engine Size5.7L/345
    Engine FamilyMopar Hemi Gen III
    Valve Installed LengthStock

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