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Manley Small Block Chevrolet 1.625 Head DIA / .3110in Stem DIA Race Master Exhaust Valves (Set of 8)

SKU: MAN11347-8

Valves

MAN Race Master Valves...

Manley Small Block Chevrolet 1.625 Head DIA / .3110in Stem DIA Race Master Exhaust Valves (Set of 8)

SKU: MAN11347-8

Valves

MAN Race Master Valves...

A$540.29
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 - Exhaust

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 - Exhaust, Valve-R/M 1.625,+600

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-11-10 23:12:56

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 05:26:25

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 man11347-8
SFX Item ID 4061261
Accounting SKU man-11347-8
Manufacturer SKU 11347-8
Manufacturer UPC 807298018201
Alternative References 11347-8, MAN-11347-8

Valves, VALVE-R/M 1.625,+.600

Manley Race Master valves are designed and engineered to withstand the abuse of the track. Race Master valves are targeted by the bracket, drag, and oval track racers, or even those with modified street engines that are operating at engine speeds below 8,000 rpm. These valves are constructed from XH-426 material for the exhaust and NK-842 for the intake valves, making them the strongest valves in their class. Whether everything is on the line at the track, or you just enjoy your high performance car or motorcycle on the street, trust Race Master valves by Manley to keep you on the move. Order the model designed for your vehicle year/make and engine application.

Product Attributes
BrandManley
Manufacturer's Part Number11347-8
Part TypeValves
Product LineManley Race Master Valves
UPC807298018201
Valve PositionExhaust
Exhaust Valve Head Diameter (in.)1.625 in.
Exhaust Valve Head Diameter (mm)41.275mm
Exhaust Valve Stem Diameter (in.)0.311 in.
Exhaust Valve Stem Diameter (mm)7.89mm
Exhaust Overall Valve Length (in.)5.540 in.
Exhaust Overall Valve Length (mm)140.716imm
Undercut StemNo
Swirl-PolishedYes
Valve Tip Length (in.)0.290 in.
Valve Tip Length (mm)7.366mm
Valve MaterialStainless steel
Lock Groove Quantity1-groove beadlock-style
Lock Groove StyleBeadlock
Approximate Weight (g)102
Valve Head Style9 degree dish
Valve Seat Width (in.)0.100 in.
QuantitySold as a set of 8.
NotesUnderhead Angle 15° Radius 1/2 in. Margin .080

Compatibility

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