What is the primary benefit of using double valve springs?

Double valve springs offer increased stability and superior dampening compared to single springs. This helps prevent resonance and ensures the valves close reliably, especially at high engine speeds.

What other engine components should I consider when installing these valve springs?

When installing high-performance valve springs, it's important to ensure your camshaft, valve guides, and retainers are also suitable for the increased demands. Always consult the manufacturer's recommendations for compatible components.

Are these valve springs suitable for a stock engine?

These Manley Performance double valve springs are designed for high-performance engine builds and aggressive camshaft profiles. They are intended for applications where the stock valvetrain components would not be sufficient for high-RPM operation.

Specifications

Brand: Manley Performance
Part #: 221446SF-16
UPC: 807298071138

Manley Valve Spring, SPRING-1.620 DOUBLE

Name: Manley Valve Spring, SPRING-1.620 DOUBLE
Brand: Manley Performance
SKU: manley-performance-manley-valve-spring-spring-1-620-double-t14-881328
Price: 1047.36 USD
Availability: BackOrder

$1047.36

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance double valve springs for high-performance engines. Ensures reliable valve control at high RPMs.

Key Features

Fits performance engine builds requiring robust valve control.
Double spring design offers enhanced stability and dampening.
Constructed from high-grade spring steel for durability.
Designed to prevent valve float at high RPMs.
Includes matching retainers for a complete valvetrain solution.
Manley Performance is a well-known brand in performance engine components.

⚠️ 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 serious performance engine, you need valve springs that can keep up. These Manley Performance double valve springs, part number 221446SF-16, are built to handle the demands of high-RPM operation and aggressive camshaft profiles. They are designed to provide consistent valve control, preventing valve float even when your engine is pushed to its limits.

Manley is well-known for making strong engine components, and these springs are no exception. They are constructed from high-grade spring steel, ensuring durability and consistent performance over time. The double spring design offers increased stability and superior dampening compared to single springs, which is crucial for preventing resonance and ensuring the valves close reliably. This setup is often used in applications where precise valve timing and control are paramount, such as in racing engines or heavily modified street performance builds. The included retainers are also well-made, designed to work seamlessly with the springs for a complete valvetrain solution.

When installing these, it's important to ensure your camshaft and valve guides are also up to the task. These springs are intended for use in performance engine builds where the stock valvetrain components would not be sufficient. Always refer to the manufacturer's installation instructions for specific details regarding spring pressures and compatibility with your chosen camshaft. This set is a solid choice for anyone serious about maximizing their engine's performance and reliability.