What is the maximum camshaft lift these springs can support?

These Manley valve springs are designed to handle camshafts with a maximum lift of .650 inches. It's important to ensure your camshaft's lift does not exceed this specification to maintain proper engine function.

What does 'super finished' mean for these valve springs?

The super-finished process creates a smoother surface on the valve springs. This smoother finish helps to reduce friction during operation and can contribute to improved longevity of the springs.

Are these springs suitable for stock LS engines?

These are high-performance valve springs designed for upgraded or performance-built LS engines that utilize camshafts with higher lift profiles. For stock camshafts, they may be overkill, and it's best to consult your engine build specifications.

Specifications

Brand: Manley Performance
Part #: 221438-16
UPC: 807298016658

Manley GM LS Series Super Finished H.P. Valve Springs .650 Max Lift (16 Pieces)

Name: Manley GM LS Series Super Finished H.P. Valve Springs .650 Max Lift (16 Pieces)
Brand: Manley Performance
SKU: manley-performance-manley-gm-ls-series-super-finished-h-p-valve-springs-650-max--t14-102213
Price: 415.51 USD
Availability: BackOrder

$415.51

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Manley GM LS Series Super Finished H.P. Valve Springs. Max lift .650".

Key Features

Fits GM LS Series engines.
Designed for camshafts with a maximum lift of .650 inches.
Features a super-finished process for reduced friction and improved durability.
Includes 16 valve springs for a complete V8 engine.
Manley Performance is known for well-built internal 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

Manley Performance is well-known for making strong internal engine components, and these GM LS Series Super Finished High Performance Valve Springs are a prime example. If you're building or upgrading a GM LS engine and need valve springs that can handle more aggressive camshafts, these are a solid option. They are designed to work with camshafts up to .650 inches of lift, giving you plenty of room for performance upgrades.

These springs feature a super-finished process, which is a manufacturing technique that creates a smoother surface finish. This smoother finish can help reduce friction and improve the overall durability of the spring. They come in a set of 16, enough for a complete V8 engine. When installing these, make sure to check your camshaft's lift specifications to ensure compatibility, as exceeding the .650" max lift could lead to valve float or other issues.