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Manley 2.020 Triple Groove Race Flo Hollow Stem Intake Valves for 03-08 5.7L Gen III Hemi - Set of 8

SKU: MAN11666H-8

Valves

MAN Race Flo Valves...

Manley 2.020 Triple Groove Race Flo Hollow Stem Intake Valves for 03-08 5.7L Gen III Hemi - Set of 8

SKU: MAN11666H-8

Valves

MAN Race Flo Valves...

A$1,092.56
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.

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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

Manley Valve - Intake, Valve-HEMI 57 R/F 2.020 HOLLOW

Part Type

Engine Intake Valve

Data: v4.2 - Upd: 2026-11-09 03:39:44

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 05:26:39

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 man11666H-8
SFX Item ID 4061469
Accounting SKU man-11666H-8
Manufacturer SKU 11666H-8
Manufacturer UPC 807298004952
Alternative References 11666H-8, MAN-11666H-8

Valves, Race Series, Intake, NK-842 Stainless Steel, 4.955 in. Overall Length, Chrysler, Dodge, 5.7L, 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 Number11666H-8
Part TypeValves
Product LineManley Race Series Stainless Steel Valves
UPC807298004952
Valve PositionIntake
Intake Valve Head Diameter (in.)2.020 in.
Intake Valve Head Diameter (mm)51.300mm
Intake Valve Stem Diameter (in.)0.312 in.
Intake Valve Stem Diameter (mm)7.90mm
Intake Overall Valve Length (in.)4.955 in.
Intake Overall Valve Length (mm)126.000mm
Undercut StemYes
Swirl-PolishedYes
Valve Tip Length (in.)0.120 in.
Valve Tip Length (mm)3.050mm
Valve MaterialNK-842 stainless steel
Lock Groove Quantity3-groove
Lock Groove StyleConventional
Approximate Weight (g)92
Valve Head Style5 degree dish
Valve Seat Width (in.)0.085 in.
QuantitySold as a set of 8.

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