GSC Power-Division Single Valve Spring and Titanium Retainer Kit for Subaru Turbo EJ Platforms

Single Retainer

$14.99

$14.99 $14.99

GSC Power-Division Single Valve Spring and Titanium Retainer Kit for Subaru Turbo EJ Platforms

SKU: RET5743

GSC Power-Division Single Valve Spring and Titanium Retainer Kit for Subaru Turbo EJ Platforms

In stock: 15

$14.99

$14.99 $14.99

The GSC Power-Division Single Cylindrical Valve Spring with Ti Retainer for the DOHC Subaru Turbo EJ platforms includes 16 titanium retainers and 16 cylindrical valve springs. These round wire springs still have the same high-quality attention to detail as our popular beehive kits.

The GSC5743 is Nano-peened and batched according to seat pressure within our specs. The lightweight titanium retainers are CNC-machined with tolerances and repeatability that are unmatched by other brands. This keeps a consistent seat pressure across the head for ultimate reliability and performance.

This is a great spring kit for the daily driver with an S1 or S2 cam profile that keeps the boost and revs below 32 psi and 8,000 RPM.

78 lbs @ 1.326" install height
197 lbs @ 0.913"

IMAGES ARE FOR ILLUSTRATION PURPOSES ONLY.

Valve Spring	Value
Setup	Cylindrical
Coil Bind (in)	0.845"
Install Height (in)	1.326"
Seat Pressure (lbs)	78
Open Pressure	197lbs @ 0.913" ( 10.50mm lift )
Maximum Valve Lift (in)	0.420"

SPRING KITS

Valve spring performance is critical to engine durability, RPM capability, and valvetrain control. GSC Power-Division spring kits are engineered to provide the stability required for aggressive cam profiles, elevated boost levels, extended RPM ranges, and demanding racing environments.

Our spring systems are developed with careful attention to harmonics, installed loads, open pressures, coil dynamics, retainer compatibility, and long-term durability. Many GSC applications utilize advanced conical spring technology to improve damping characteristics, reduce harmonics, minimize spring stress, and maintain superior valve control at elevated engine speeds. The result is increased confidence when pushing horsepower, RPM, and boost beyond conventional limits.

Frequently Asked Questions

Why should I upgrade my valve springs?

Upgraded valve springs provide greater valve control at high RPM, higher boost pressures, and with more aggressive camshaft profiles. This helps prevent valve float and improves reliability.

What are the benefits of conical valve springs?

Conical valve springs offer reduced retainer mass, improved natural frequency, greater stability, and improved high-RPM performance compared to traditional cylindrical springs or beehive springs.

Do your spring kits include retainers?

Many GSC spring kits include titanium retainers. Refer to individual product descriptions for complete kit contents.

Can I reuse my factory retainers?

Only if specifically stated. Most performance applications should utilize the retainers recommended for the spring package.

GENERAL F.A.Q

Many GSC products, including our camshafts, are designed, machined, and finished in-house at our facility in South Carolina, USA. We maintain strict quality control throughout the manufacturing process.

GSC Power-Division has been serving the performance automotive industry for over 20 years, supplying racers, engine builders, tuners, and enthusiasts worldwide.

Yes. We sell directly through our website and also through an extensive network of authorized dealers and distributors worldwide.

GSC’s warranty covers defects in the product itself. Consequential damages, including engine damage, labor, towing, or vehicle downtime, are not covered.

Products used in racing or competition environments are subject to conditions outlined in our warranty policy. Performance applications inherently involve risks beyond normal operating conditions.