What is the main benefit of a double valve spring?

A double valve spring setup uses two springs per valve, which provides increased spring force and better control over valve motion. This helps prevent valve float at higher RPMs and ensures the valves close reliably.

What does 'w/o Damper' mean for these valve springs?

This indicates that the valve springs do not include a damper. Dampers are sometimes used to reduce spring surge or oscillation, but many performance applications opt for a simpler, solid double spring setup without one.

Are these springs suitable for stock engines?

These are performance-oriented valve springs designed for engines that have been modified with more aggressive camshafts or are intended for higher RPM operation. They may be overkill for a stock engine and could require other supporting modifications.

Specifications

Brand: Manley Performance
Part #: 221424-16
UPC: 807298023601

Manley NexTek Series Double w/o Damper 16pc Valve Springs 1.640 OD/.860 ID

Name: Manley NexTek Series Double w/o Damper 16pc Valve Springs 1.640 OD/.860 ID
Brand: Manley Performance
SKU: manley-performance-manley-nextek-series-double-w-o-damper-16pc-valve-springs-1-6-t14-120062
Price: 424.27 USD
Availability: BackOrder

$424.27

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Manley NexTek Series double valve springs for performance engines. Offers improved valve control.

Key Features

Manley NexTek Series double valve springs
1.640 inch outer diameter
0.860 inch inner diameter
Double spring design without a damper
Designed for improved valve control in performance engines
Well-built for demanding engine conditions

⚠️ 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 NexTek Series double valve springs are a great example of that. If you're building or rebuilding an engine that needs to handle higher RPMs or more aggressive camshafts, these springs are designed to keep your valves in check. They feature a double spring design, meaning you get two springs working together for each valve, which helps ensure consistent valve control even under demanding conditions.

These springs have an outer diameter of 1.640 inches and an inner diameter of 0.860 inches. The double spring setup without a damper is a popular choice for many performance applications where maximum spring force and reliability are key. They are well-built to withstand the stresses of performance engine operation, helping to prevent valve float and ensure your engine performs as it should at higher engine speeds.