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Est. 1957
Manley Performance

Manley Springs Single Hemi

$507.78

On Backorder — Expected to ship by May 3, 2026

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Manley Springs Single Hemi Valve Springs. Built for high-performance Hemi engines.

Key Features

  • Fits performance Hemi engines.
  • Constructed from high-tensile spring wire for durability.
  • Designed to prevent valve float at high RPMs.
  • A popular choice for modified Hemi engine builds.
  • Intended for use with matching Manley retainers and valve seals.

⚠️ 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 building a high-performance Hemi engine, especially one that's going to see a lot of track time or aggressive street use, you need valve springs that can keep up. These Single Hemi valve springs from Manley Performance are designed to handle the demands of modified Hemi applications, ensuring your valvetrain stays stable at higher RPMs and under increased stress. They are a popular choice for builders looking to get the most out of their Hemi powerplants.

Manley Performance has a reputation for well-built engine components, and these springs are no exception. They are constructed from a high-tensile spring wire, which is crucial for maintaining consistent pressure and preventing valve float, even when you're pushing your engine hard. The design is specifically tailored for Hemi cylinder heads, aiming for a direct fit and reliable operation. This means you can focus on tuning and performance, knowing your valve springs are up to the task. They are designed to work with Manley's matching retainers and valve seals for a complete valvetrain solution.

When you're assembling a serious Hemi engine, every component matters. These Manley springs are a solid option for those who demand reliability and performance from their valvetrain. Make sure to consult Manley's technical documentation for specific installation guidelines and recommended pairings to ensure optimal performance and longevity for your build.

Specifications

Brand
Manley Performance
Manufacturer Part #
221431-16
UPC
807298061160

Frequently Asked Questions

Manley Springs Single Hemi

$507.78