What material are these Manley exhaust valves made from?

These Manley Race Master exhaust valves are constructed from stainless steel. They also feature chrome-plated stems and hardened tips for added durability and wear resistance.

Are these valves suitable for high-RPM use?

Yes, these valves are meticulously engineered for engines operating under 8000 RPM, making them suitable for demanding racing applications like drag and oval track.

What is the benefit of the swirl polished and machined faces?

The swirl polished under-head areas and fully machined combustion faces are designed to optimize airflow into the cylinder. This can contribute to improved combustion efficiency and overall engine performance.

Specifications

Brand: Manley Performance
Part #: 11901-8
UPC: 807298055084

Manley Chrysler 426 Hemi 1.900 Head .3100 Stem Standard Length Race Master Exhaust Valves (Set of 8)

Name: Manley Chrysler 426 Hemi 1.900 Head .3100 Stem Standard Length Race Master Exhaust Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-chrysler-426-hemi-1-900-head-3100-stem-standard-length-t14-4314107
Price: 235.06 USD
Availability: BackOrder

$235.06

On Backorder

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Manley Chrysler 426 Hemi Race Master exhaust valves (Set of 8). Stainless steel construction for durability in high-RPM engines.

Key Features

Fits Chrysler 426 Hemi engines.
Set of 8 Race Master exhaust valves.
Constructed from stainless steel for durability.
Chrome stems and hard tips enhance wear resistance and longevity.
Swirl polished under-head areas and fully machined combustion faces optimize airflow.
Recommended for alcohol engines.

These valves are designed for Chrysler 426 Hemi engines. Please verify compatibility with your specific engine build.

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About this part

Product Details

If you're rebuilding the top end of a Chrysler 426 Hemi engine, especially for racing applications under 8000 RPM, these Manley Race Master exhaust valves are a solid option. They are specifically designed to handle the stresses of bracket, drag, and oval track racing, offering improved durability and airflow.

These valves are made from stainless steel, which is a strong material that resists corrosion and wear, especially important in demanding engine builds. The stems are chrome-plated and the tips are hardened for extra longevity, meaning they can stand up to repeated cycles. Manley also swirl polishes the areas under the head and fully machines the combustion faces. This attention to detail helps optimize airflow into the cylinder, which can contribute to better combustion efficiency.

This set includes eight exhaust valves, and they are the recommended choice for exhaust valves in alcohol-fueled engines, indicating their robustness in challenging conditions. You can choose between the Race Master straight stem design or the Race Flo shape depending on your specific engine build's needs.