What is the spring rate of these Ferrea valve springs?

Each valve spring in this set has a rate of 241 pounds per inch. This specification is important for controlling valve movement and preventing valve float at high engine speeds.

What is the benefit of using dual valve springs?

Dual valve springs provide increased stability and better control over valve motion, especially under high-stress conditions like high RPMs or aggressive camshaft use. They also help to dampen harmonics within the valvetrain.

What other parts are typically needed when installing these valve springs?

When installing performance valve springs like these, it's common to also use compatible performance camshafts and retainers. Always refer to the manufacturer's installation instructions for a complete list of recommended components and procedures.

Ferrea Subaru EJ20 Dual Valve Spring Set S10072

Name: Ferrea Subaru EJ20 241lbs Rate Inch Dual Valve Spring - Set of 16
Brand: Ferrea
SKU: ferrea-ferrea-subaru-ej20-241lbs-rate-inch-dual-valve-spring-set-of-16-t14-419085
Price: 552.14 USD
Availability: BackOrder

Ferrea Subaru EJ20 241lbs Rate Inch Dual Valve Spring - Set of 16

$552.14

On Backorder

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

Ferrea Subaru EJ20 241lbs Rate Inch Dual Valve Spring - Set of 16

Key Features

Fits Subaru EJ20 engines.
Set includes 16 dual valve springs.
Each spring has a rate of 241 lbs/in.
Dual spring design offers improved stability and control.
Designed to handle higher RPMs and aggressive camshaft profiles.

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Product Details

Ferrea is well-known for making high-performance valvetrain components, and this set of dual valve springs for the Subaru EJ20 engine is no exception. If you're rebuilding the top end of your EJ20 or looking to handle more aggressive camshaft profiles, these springs are designed to keep your valvetrain stable under demanding conditions.

This set includes 16 dual valve springs, each rated at 241 pounds per inch. This spring rate is crucial for controlling valve float, especially at higher RPMs or when using camshafts with higher lift and duration. The dual spring design offers increased stability and resistance to harmonics, which is important for preventing valve damage and ensuring consistent engine performance. Ferrea uses high-grade materials and advanced manufacturing processes to ensure these springs can withstand the heat and stress of performance engine operation.

When installing these springs, it's important to follow the manufacturer's recommended procedures to ensure proper seating and function. Because these are performance-oriented springs, they are typically used in conjunction with performance camshafts and retainers. Make sure all components in your valvetrain are compatible and in good condition to get the most out of this upgrade.