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Manley Severe Duty Series Stainless Steel Valves 11581-1 Valve, Exhaust, Duty, Steel, 1.900 in. Diameter, 0.3415 in. Stem, 6.380 in. Length, Each

SKU: MAN11581-1

Valves

Manley Severe Duty Series Stainless Steel Valves 11581-1 Valve, Exhaust, Duty, Steel, 1.900 in. Diameter, 0.3415 in. Stem, 6.380 in. Length, Each

SKU: MAN11581-1

Valves
A$108.05
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


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:31:19

Data: v4.2 - Upd: 2026-11-08 17:44:53

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Manley Performance, Manley
StreetFX SKU man11581-1
SFX Item ID 4932246
Accounting SKU man-11581-1
Manufacturer SKU 11581-1
Manufacturer UPC 807298050607
Alternative References 11581-1, MAN-11581-1

Valve, Exhaust, Severe Duty, Stainless Steel, 1.900 in. Diameter, 0.3415 in. Stem, 6.380 in. Length, Each

Manley Severe Duty series performance 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 made of superior materials, are fully machined and swirl polished, and are available with either undercut "Pro Flo" stems or straight stems.

Product Attributes
BrandManley
Manufacturer's Part Number11581-1
Part TypeValves
Product LineManley Severe Duty Series Stainless Steel Valves
UPC807298050607
Valve PositionExhaust
Exhaust Valve Head Diameter (in.)1.900 in.
Exhaust Valve Head Diameter (mm)48.260mm
Exhaust Valve Stem Diameter (in.)0.342 in.
Exhaust Valve Stem Diameter (mm)8.67mm
Exhaust Overall Valve Length (in.)6.380 in.
Exhaust Overall Valve Length (mm)162.052mm
Undercut StemNo
Swirl-PolishedYes
Valve Tip Length (in.)0.250 in.
Valve Tip Length (mm)6.350mm
Valve MaterialXH-428 stainless steel
Lock Groove Quantity1-groove
Lock Groove StyleConventional
Approximate Weight (g)144
Valve Head Style20 degree dish
Valve Seat Width (in.)0.100 in.
QuantitySold individually.

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