What is the benefit of a dual valve spring?

A dual valve spring setup uses two springs working in tandem for each valve. This design offers better control over the valve's movement, especially at higher RPMs or with aggressive camshafts, helping to prevent valve float.

What material are these springs made from?

These valve springs are constructed from Ferrea's Pro PAC alloy, a material selected for its strength and ability to withstand the stresses of performance engine operation.

Are these springs designed for stock engines?

While they fit stock locations, these springs are particularly well-suited for GM LS1 engines that have been modified with performance camshafts or are intended for higher RPM operation.

FEATURED BRAND = COVERKING CHECK OUT COVERKING NOW →

Questions? Call Us:631-982-0042

M-F 8AM-4PM ET

Trusted Since 1957

Est. 1957

Specifications

Brand: Ferrea
Part #: S99100-1

Ferrea GM LS1 Pro PAC Alloy Dual Valve Spring - Single (Drop Ship Only)

Name: Ferrea GM LS1 Pro PAC Alloy Dual Valve Spring - Single (Drop Ship Only)
Brand: Ferrea
SKU: ferrea-ferrea-gm-ls1-pro-pac-alloy-dual-valve-spring-single-drop-ship-only-t14-419268
Price: 51.44 USD
Availability: BackOrder

$51.44

On Backorder

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

Ferrea Pro PAC Alloy Dual Valve Spring for GM LS1 engines. Direct fit.

Key Features

Fits GM LS1 engines.
Pro PAC alloy construction for durability.
Dual spring design for improved valve control.
Designed for performance camshafts and higher RPMs.
Single spring unit.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

Ferrea is known for making high-performance valvetrain components, and this Pro PAC Alloy Dual Valve Spring is a great example of their work for GM LS1 engines. If you're rebuilding the top end of your LS1, these springs are designed to handle the demands of performance camshafts and higher RPMs.

These springs are made from a Pro PAC alloy, which is a strong material chosen for its durability under stress. They are designed as a dual spring setup, meaning there are two springs working together for each valve. This setup offers improved stability and control over the valve's movement, especially when you're running a more aggressive camshaft profile that requires faster valve closing speeds. They fit right into the stock location, making installation straightforward for a rebuild.