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Manley Severe Duty Series Stainless Steel Valves 11503-6 Valves, Exhaust, Steel, 1.500 in. Diameter, .342 in. Stem, 4.725 in. Length, Buick V6, Set of 6

SKU: MAN11503-6

Valves

Manley Severe Duty Series Stainless Steel Valves 11503-6 Valves, Exhaust, Steel, 1.500 in. Diameter, .342 in. Stem, 4.725 in. Length, Buick V6, Set of 6

SKU: MAN11503-6

Valves
A$465.45
LAST ONE! Est Ship 4-7 days. In stock at 1 location (only 1 available)

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Description

Exclusive Manley Performance flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Manley Performance part numbers. There's never been a better time to buy your Manley Performance upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Exhaust Valve - Severe Duty - 1.500 in Head - 0.342 in Valve Stem - 4.725 in Long - Stainless - Buick V6 - Set of 6


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:31:17

Data: v4.2 - Upd: 2026-11-09 03:33:44

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 man11503-6
SFX Item ID 4932214
Accounting SKU man-11503-6
Manufacturer SKU 11503-6
Manufacturer UPC 807298049106
Alternative References 11503-6, MAN-11503-6

Valves, Exhaust, Stainless Steel, 1.500 in. Diameter, .342 in. Stem, 4.725 in. Length, Buick V6, Set of 6

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 Number11503-6
Part TypeValves
Product LineManley Severe Duty Series Stainless Steel Valves
UPC807298049106
Valve PositionExhaust
Exhaust Valve Head Diameter (in.)1.500 in.
Exhaust Valve Head Diameter (mm)38.100mm
Exhaust Valve Stem Diameter (in.)0.342 in.
Exhaust Valve Stem Diameter (mm)8.69mm
Exhaust Overall Valve Length (in.)4.725 in.
Exhaust Overall Valve Length (mm)120.015mm
Undercut StemNo
Swirl-PolishedYes
Valve Tip Length (in.)0.270 in.
Valve Tip Length (mm)6.858mm
Valve MaterialStainless steel
Lock Groove Quantity1-groove
Lock Groove StyleConventional
Approximate Weight (g)98
QuantitySold as a set of 6.

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