What is the purpose of the damper in these valve springs?

The damper is built into the spring to help control unwanted harmonics and vibrations. This helps ensure smoother operation and better valve control, especially in performance applications.

What does 'D/S Only' mean for these springs?

D/S Only typically refers to 'Dual Spring Only' or 'Driver's Side Only' depending on the application. In this context, it indicates that this specific spring set is designed for one side of the engine, often meaning it's part of a larger system or intended for specific cylinder head configurations.

What kind of engine builds are these springs best suited for?

These springs are well-suited for performance engine builds. The dual spring design with a damper helps manage valve control at higher RPMs and with more aggressive camshafts, contributing to engine reliability and performance.

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Specifications

Brand: Ferrea
Part #: S10004-1

Ferrea 1.600in to 1.650in Dia 1.065/1.625 OD 0.770/1.189 ID Dual w/Damper Spring- Sngl (D/S Only)

Name: Ferrea 1.600in to 1.650in Dia 1.065/1.625 OD 0.770/1.189 ID Dual w/Damper Spring- Sngl (D/S Only)
Brand: Ferrea
SKU: ferrea-ferrea-1-600in-to-1-650in-dia-1-065-1-625-od-0-770-1-189-id-dual-w-damper-t14-418996
Price: 34.23 USD
Availability: BackOrder

$34.23

On Backorder

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

Ferrea Dual Valve Spring S10004-1. Designed for performance engine builds.

Key Features

Dual valve spring set with integrated damper.
Outer spring measures 1.065 inches OD and 0.770 inches ID.
Inner spring measures 1.625 inches OD and 1.189 inches ID.
Designed for single (D/S Only) applications.
Ferrea is a well-known brand for engine components.

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About this part

Product Details

These Ferrea dual valve springs are built with a damper to help control unwanted harmonics and vibrations. The spring set features an outer diameter of 1.065 inches and an inner diameter of 0.770 inches, with the inner spring measuring 1.625 inches OD and 1.189 inches ID. They are intended for single (D/S Only) applications, meaning they are designed for one side of the engine.

Ferrea is known for making well-built engine components, and these springs are no exception. They are designed to handle the demands of performance engine builds where stock springs might not be up to the task. Using a dual spring setup with a damper helps ensure valve control at higher RPMs and under more aggressive cam profiles, contributing to overall engine reliability and performance.