What makes these valves suitable for high-RPM engines?

These Manley Race Series valves are built for engines operating under 8000 RPM. Their stainless steel construction, chrome stems, and hard tips are designed to withstand the stresses of higher engine speeds and frequent use.

Are these valves suitable for naturally aspirated engines?

While recommended for alcohol engines, the stainless steel construction, swirl polished under-head areas, and fully machined combustion faces contribute to improved airflow and durability, making them a strong choice for many performance applications.

What is the purpose of the bead lock groove?

The bead lock groove is a feature that helps secure the valve seat or retainer in place, particularly important in high-stress or high-vibration environments common in racing applications.

Specifications

Brand: Manley Performance
Part #: 11665B-8
UPC: 807298004914

Manley thru 08 Chrysler Hemi 5.7L w/ Bead Loc Groove 1.555in Race Master Exhaust Valves (Set of 8)

Name: Manley thru 08 Chrysler Hemi 5.7L w/ Bead Loc Groove 1.555in Race Master Exhaust Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-thru-08-chrysler-hemi-5-7l-w-bead-loc-groove-1-555in-r-t14-307775
Price: 230.31 USD
Availability: BackOrder

$230.31

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Manley Race Master exhaust valves for 2003-2008 Chrysler Hemi 5.7L. Set of 8, 1.555in bead loc groove.

Key Features

Fits 2003-2008 Chrysler Hemi 5.7L engines.
Set of 8 Race Master exhaust valves with a 1.555 inch bead lock groove.
Constructed from stainless steel for durability.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl polished under head areas and fully machined combustion faces optimize airflow.
Recommended for exhaust valves in alcohol engines.

These valves are designed for 2003-2008 Chrysler Hemi 5.7L engines. Always verify fitment for your specific vehicle application.

⚠️ 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 2003-2008 Chrysler Hemi 5.7L, these Manley Race Master exhaust valves are a solid option. They're built for engines that see a lot of action, especially those running up to 8000 RPM, making them a popular choice for drag racing or bracket racing applications.

These valves are made from stainless steel, which is a strong material that holds up well over time. They also feature chrome stems and hard tips to help them last longer and resist wear, especially in demanding conditions. The under-head area is swirl polished and the combustion faces are fully machined. This design helps improve airflow and combustion efficiency. They also have a bead lock groove, which is important for certain engine builds.

This set includes eight exhaust valves, and they are specifically recommended for use in alcohol-fueled engines, where they can handle the unique demands of that fuel type.