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Manley Severe Duty Pro Flo Series Stainless Steel Valves 11823-1 Valve, Exhaust, Steel, 1.600 in. Diameter, .341 in. Stem, 5.036 in. Length, Chevy, Each

SKU: MAN11823-1

Valves

Manley Severe Duty Pro Flo Series Stainless Steel Valves 11823-1 Valve, Exhaust, Steel, 1.600 in. Diameter, .341 in. Stem, 5.036 in. Length, Chevy, Each

SKU: MAN11823-1

Valves
A$108.05
IN STOCK! Est Ship 3-7 Days days. In stock at 1 location (only 1 available)

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Description

Exhaust Valve - Severe Duty - 1.600 in Head - 0.342 in Valve Stem - 5.036 in Long - Stainless - Small Block Chevy - Each


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:27:25

Data: v4.2 - Upd: 2026-11-09 03:37:38

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 man11823-1
SFX Item ID 4927769
Accounting SKU man-11823-1
Manufacturer SKU 11823-1
Manufacturer UPC 807298053318
Alternative References 11823-1, MAN-11823-1

Valve, Exhaust, Stainless Steel, 1.600 in. Diameter, .341 in. Stem, 5.036 in. Length, Chevy, Each

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.

Product Attributes
BrandManley
Manufacturer's Part Number11823-1
Part TypeValves
Product LineManley Severe Duty Pro Flo Series Stainless Steel Valves
UPC807298053318
Valve PositionExhaust
Exhaust Valve Head Diameter (in.)1.600 in.
Exhaust Valve Head Diameter (mm)40.640mm
Exhaust Valve Stem Diameter (in.)0.341 in.
Exhaust Valve Stem Diameter (mm)8.66mm
Exhaust Overall Valve Length (in.)5.036 in.
Exhaust Overall Valve Length (mm)127.914mm
Undercut StemYes
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)100
Valve Head Style7 degree dish
Valve Seat Width (in.)0.100 in.
QuantitySold individually.

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