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Manley 426 HEMI 2.250 Intake .310inch Stem 5.490inch Length Stainless Intake Valves (Set of 8)

SKU: MAN11518-8

Valves

MAN Race Flo Valves...

Manley 426 HEMI 2.250 Intake .310inch Stem 5.490inch Length Stainless Intake Valves (Set of 8)

SKU: MAN11518-8

Valves

MAN Race Flo Valves...

A$417.12
Available from MFR. In stock at 1 location (7 available)

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Description

Intake Valve - Race Master - 2.250 in Head - 0.310 in Valve Stem - 5.490 in Long - Stainless - Mopar 426 Hemi - Set of 8

Valve - Intake

Manley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.

Part Type

Engine Intake Valve

Data: v4.2 - Upd: 2026-11-11 08:34:50

Features

  • Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
  • Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
  • Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
  • Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
  • Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:25:53

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 man11518-8
SFX Item ID 4060835
Accounting SKU man-11518-8
Manufacturer SKU 11518-8
Manufacturer UPC 807298049403
Alternative References 11518-8, MAN-11518-8

Valves, Intake, NK-842 Stainless, 2.250 in. Diameter, .3100 in. Stem, 5.490 in. Length, Set of 8

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.

Product Attributes
BrandManley
Manufacturer's Part Number11518-8
Part TypeValves
Product LineManley Race Series Stainless Steel Valves
UPC807298049403
Valve PositionIntake
Intake Valve Head Diameter (in.)2.250 in.
Intake Valve Head Diameter (mm)57.150mm
Intake Valve Stem Diameter (in.)0.310 in.
Intake Valve Stem Diameter (mm)7.87mm
Intake Overall Valve Length (in.)5.490 in.
Intake Overall Valve Length (mm)139.446mm
Undercut StemNo
Swirl-PolishedYes
Valve Tip Length (in.)0.250 in.
Valve Tip Length (mm)6.350mm
Valve MaterialStainless steel
Lock Groove Quantity1-groove
Lock Groove StyleConventional
Approximate Weight (g)131
Valve Head Style19 degree dish
Valve Seat Width (in.)0.080 in.
QuantitySold as a set of 8.

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