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Manley Small Block Chevy LS-1/LS-2 (LS-6 Head) Race Flo Intake Valves (Set of 8)

SKU: MAN11390-8

Valves

MAN Race Flo Valves...

Manley Small Block Chevy LS-1/LS-2 (LS-6 Head) Race Flo Intake Valves (Set of 8)

SKU: MAN11390-8

Valves

MAN Race Flo Valves...

A$385.81
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

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.

Additional Information

Head Diameter: 2.055 in. - Stem Diameter: .3133 in. - O/A : 4.874

Part Type

Engine Intake Valve

Data: v4.2 - Upd: 2026-11-09 03:40:24

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 05:25:22

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 man11390-8
SFX Item ID 4060374
Accounting SKU man-11390-8
Manufacturer SKU 11390-8
Manufacturer UPC 807298051659
Alternative References 11390-8, MAN-11390-8

Valves, Intake, Stainless Steel, 2.055 in. Diameter, .313 in. Stem, 4.874 in. Length, Chevy, 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 Number11390-8
Part TypeValves
Product LineManley Race Series Stainless Steel Valves
UPC807298051659
Valve PositionIntake
Intake Valve Head Diameter (in.)2.055 in.
Intake Valve Head Diameter (mm)52.197mm
Intake Valve Stem Diameter (in.)0.313 in.
Intake Valve Stem Diameter (mm)7.95mm
Intake Overall Valve Length (in.)4.874 in.
Intake Overall Valve Length (mm)123.800mm
Undercut StemYes
Swirl-PolishedYes
Valve Tip Length (in.)0.175 in.
Valve Tip Length (mm)4.445mm
Valve MaterialNK-842 stainless steel
Lock Groove Quantity1-groove
Lock Groove StyleConventional
Approximate Weight (g)106
Valve Head Style7 degree dish
Valve Seat Width (in.)0.095 in.
QuantitySold as a set of 8.

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