What material is this valve made from?

This Manley Race Series valve is constructed from stainless steel. It also features chrome stems and hard tips to improve its resistance to wear and increase its overall lifespan.

What kind of engine applications is this valve suited for?

This valve is designed for racing engines operating under 8000 RPM, such as those used in bracket, drag, and oval track racing. It is also recommended for alcohol engines, especially for exhaust valve use.

What does 'swirl polished' and 'fully machined' mean for this valve?

The swirl polished under-head area and fully machined combustion face are design features aimed at improving airflow into the cylinder. This can help contribute to more efficient combustion within the engine.

Specifications

Brand: Manley Performance
Part #: 11618B-8
UPC: 807298061221

Manley VALVE-FD 4V R/M 38mm Bead Lock

Name: Manley VALVE-FD 4V R/M 38mm Bead Lock
Brand: Manley Performance
SKU: manley-performance-manley-valve-fd-4v-r-m-38mm-bead-lock-t14-402651
Price: 235.06 USD
Availability: BackOrder

$235.06

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Manley Race Series 38mm intake valve. Stainless steel construction with chrome stems and hard tips for enhanced longevity.

Key Features

This product is one Manley Race Series intake valve.
Constructed from stainless steel for durability.
Features chrome stems and hard tips for enhanced wear resistance.
Swirl polished under head areas and fully machined combustion faces help optimize airflow.
Recommended for alcohol engines, particularly for exhaust applications.

⚠️ 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

In this box, you get one Manley Race Series intake valve. This valve is designed for engines that run up to 8000 RPM, making it a solid choice for bracket, drag, and oval track racing applications. It's built from stainless steel, which is known for its durability, and features a chrome stem and a hard tip to help it stand up to wear over time.

The under-head area of the valve is swirl polished, and the combustion face is fully machined. This design helps improve airflow into the cylinder and can contribute to more efficient combustion. Manley recommends these valves for use in alcohol-fueled engines, especially for exhaust applications, where they can handle the demanding conditions.