What material are these Manley exhaust valves made from?

These Manley Race Series exhaust valves are constructed from high-quality stainless steel, specifically XH-426. They also feature chrome stems and hard tips for added durability and wear resistance.

Are these valves suitable for all engine RPM ranges?

Manley's Race Series valves are engineered for engines operating under 8000 RPM. They are a great choice for bracket, drag, and oval track racing applications.

What is the difference between Race Master and Race Flo valve shapes?

The Race Master valves, like this part number, feature a straight stem. The Race Flo shape offers a different profile, which may be better suited for specific racing engine designs. You should choose based on your engine's particular requirements.

Specifications

Brand: Manley Performance
Part #: 11149-12
UPC: 807298010786

Manley Nissan 3.5L V6 (VQ35DE VQ35DET) DOHC 24 Exhaust 31.5mm Stainless Race Master Valves

Name: Manley Nissan 3.5L V6 (VQ35DE VQ35DET) DOHC 24 Exhaust 31.5mm Stainless Race Master Valves
Brand: Manley Performance
SKU: manley-performance-manley-nissan-3-5l-v6-vq35de-vq35det-dohc-24-exhaust-31-5mm-s-t14-5550
Price: 488.42 USD
Availability: BackOrder

$488.42

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Manley Nissan 3.5L VQ35DE/VQ35DET DOHC 24 Exhaust 31.5mm Stainless Race Master Valves. Well-built stainless steel construction for durability.

Key Features

Fits 2001-2008 Infiniti and Nissan 3.5L V6 (VQ35DE, VQ35DET) DOHC engines.
Exhaust valves constructed from durable XH-426 stainless steel.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl polished under-head areas and fully machined combustion faces optimize airflow.
Race Master (straight stem) design for specific racing applications.
Recommended for exhaust valves in alcohol engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're rebuilding the top end of your Nissan 3.5L V6 engine, specifically a VQ35DE or VQ35DET, these Manley Race Series exhaust valves are a solid option. They're designed for engines that see regular track use or operate under 8000 RPM, offering improved durability over stock components. This particular valve is the Race Master style, featuring a straight stem, and has a 31.5mm head diameter with a 6mm stem diameter, measuring 94mm in overall length. These valves fit a range of popular vehicles including the Infiniti G35, Nissan 350Z, and Nissan Altima.

Manley builds these exhaust valves from high-quality stainless steel, specifically XH-426, to stand up to the heat and stress of performance applications. They also feature chrome stems and hard tips to resist wear, extending their service life. The under-head areas are swirl polished to help smooth airflow into the cylinder, and the combustion faces are fully machined for better efficiency. These are also recommended for use in alcohol-fueled engines, where they provide reliable performance.