What is the advantage of using dual valve springs?

Dual valve springs, with an inner and outer spring for each valve, offer better control at higher engine speeds. This setup helps prevent valve float, ensuring the valves close reliably even when the engine is working hard.

What else might I need to install this valve spring kit?

This kit includes the dual valve springs. You will likely need compatible retainers, valve seals, and potentially other valvetrain hardware for a complete installation. Always refer to your vehicle's service manual or manufacturer instructions for a full parts list.

Are these springs suitable for modified engines?

Yes, the dual spring design is particularly beneficial for modified EJ25 engines that may experience increased cylinder pressures or are intended for higher RPM operation. They are built to handle the added stress.

Supertech Subaru EJ25 Dual Valve Spring Kit SPRK-TS1015-IN-S

Name: Supertech Subaru EJ25 Dual Valve Spring Kit
Brand: Supertech
SKU: supertech-supertech-subaru-ej25-dual-valve-spring-kit-t14-562581
Price: 661.88 USD
Availability: BackOrder

Supertech Subaru EJ25 Dual Valve Spring Kit

$661.88

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 kit for Subaru EJ25 engines.

Key Features

Fits Subaru EJ25 engines.
Dual spring design for improved valve control.
Constructed from strong materials to withstand high RPMs.
Helps prevent valve float under demanding conditions.
Designed for a direct fit in EJ25 cylinder heads.

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Product Details

Supertech is known for making well-built engine components, and this dual valve spring kit for Subaru EJ25 engines is no exception. If you're rebuilding the top end of your Subaru EJ25, whether for performance or to refresh worn-out parts, a strong set of valve springs is crucial for keeping everything in sync at higher RPMs.

This kit includes dual springs, which means you get an inner and outer spring for each valve. This setup helps prevent valve float, especially when you're pushing the engine harder or have made modifications that increase cylinder pressure. The springs are made from strong materials designed to handle the stresses of repeated opening and closing, and they're built to maintain their tension over time. You'll find that using a dual spring setup can help ensure consistent valve control, which is important for both power delivery and engine longevity. This kit is designed to fit right into your EJ25 cylinder heads, making the installation process as straightforward as possible for a job like this.

When you're working on the valvetrain, it's important to have all the right pieces. This kit focuses on the springs themselves, so make sure you have your retainers, seals, and any other necessary hardware ready before you begin. Proper installation will ensure you get the most out of these well-made components.