What is a triple valve spring?

A triple valve spring uses three concentric springs working together. This design provides increased spring force and better stability, which is important for preventing valve float at high engine speeds or with aggressive camshafts.

What does 'double-sided (D/S) Only' mean for this spring?

This designation indicates that the spring is intended for use in engine configurations where the valve spring setup is mirrored on both sides of the engine, or it may refer to a specific orientation or application within the cylinder head.

What are the specific dimensions of this valve spring?

The spring has an outer diameter that steps down from 1.650 inches to 1.600 inches. The inner diameters are .645, .885, and 1.20 inches, while the outer diameters are .885, 1.20, and 1.65 inches.

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Specifications

Brand: Ferrea
Part #: S10001-1

Ferrea 1.650in to 1.600in .885/1.20/1.65 OD .645/.885/1.20 ID Triple Valve Spring- Single (D/S Only)

Name: Ferrea 1.650in to 1.600in .885/1.20/1.65 OD .645/.885/1.20 ID Triple Valve Spring- Single (D/S Only)
Brand: Ferrea
SKU: ferrea-ferrea-1-650in-to-1-600in-885-1-20-1-65-od-645-885-1-20-id-triple-valve-s-t14-418990
Price: 60.12 USD
Availability: BackOrder

$60.12

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Ferrea S10001-1 triple valve spring. Single spring, double-sided.

Key Features

This product includes a single Ferrea triple valve spring.
Designed for double-sided (D/S) applications.
Outer diameter measures 1.650 inches to 1.600 inches.
Inner diameter measurements are .645 inches, .885 inches, and 1.20 inches.
Outer diameter measurements are .885 inches, 1.20 inches, and 1.65 inches.

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About this part

Product Details

This listing is for a single Ferrea triple valve spring, designed for double-sided applications. It features an outer diameter that transitions from 1.650 inches down to 1.600 inches, with specific inner and outer diameter measurements of .885/.645 inches, 1.20/.885 inches, and 1.65/1.20 inches respectively. This type of spring is often used in performance engine builds where precise valve control is critical.

Ferrea is known for making well-built engine components. This triple valve spring is constructed to handle the demands of higher RPMs and more aggressive camshaft profiles. The triple-spring design offers increased stability and control over the valve train, helping to prevent valve float at high engine speeds.