What is the benefit of dual valve springs?

Dual valve springs offer increased spring pressure and better control over valve motion, especially at higher RPMs. This helps prevent valve float and ensures the valves close reliably, which is important for performance engines.

What does '82lb at 41mm / 185lb at 10mm lift' mean?

This indicates the spring pressure at specific points. 82 pounds of force is needed to compress the spring to 41mm, and 185 pounds of force is needed to compress it 10mm from its installed height. This shows the spring's strength under load.

Are retainers and locks included with these springs?

This set includes the dual valve springs only. You will need to source compatible retainers, locks, and seals separately to complete the installation.

Supertech Dual Valve Spring Set SPR-2521-2-24

Name: Supertech Dual Valve Spring 82lb at 41mm / 185lb at 10mm Lift / CB 25.5mm Chrome Silicon - Set of 24
Brand: Supertech
SKU: supertech-supertech-dual-valve-spring-82lb-at-41mm-185lb-at-10mm-lift-cb-25-5mm--t14-482774
Price: 471.32 USD
Availability: BackOrder

Supertech Dual Valve Spring 82lb at 41mm / 185lb at 10mm Lift / CB 25.5mm Chrome Silicon - Set of 24

$471.32

On Backorder

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

Supertech Dual Valve Spring Set SPR-2521-2-24. Chrome Silicon construction for improved valve control.

Key Features

Set of 24 dual valve springs for 6-cylinder engines.
Constructed from chrome silicon for durability and consistent spring rate.
Offers 82lb of pressure at 41mm installed height.
Provides 185lb of pressure at 10mm of lift.
Designed to prevent valve float at higher RPMs and camshaft lifts.
Outer diameter is 25.5mm and inner diameter is 18.5mm.

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Product Details

If you're rebuilding the top end of your engine, especially for performance applications, getting the right valve springs is crucial. These Supertech dual valve springs are designed to handle increased camshaft lift and duration, ensuring your valves close reliably at higher RPMs. They are made from chrome silicon, a material known for its strength and ability to maintain its spring rate under stress.

This set includes 24 springs, enough for a typical 6-cylinder engine. They offer 82 pounds of pressure at 41mm installed height and 185 pounds of pressure at 10mm of lift, which is a notable increase over stock springs. This improved spring pressure helps prevent valve float, allowing your engine to rev more freely and safely. The 25.5mm outer diameter and 18.5mm inner diameter are standard sizes for many performance applications, but always double-check your cylinder head's spring seat dimensions.

When installing these, pay close attention to the manufacturer's recommended installed height and seat pressure. Proper installation is key to achieving the performance benefits and ensuring the longevity of your valvetrain components.