GSC Conical Valve Spring Kit w/ Titanium Retainers – Subaru EZ36 (GSC5065)
High-RPM Valvetrain Stability for EZ36 Engines
The GSC Power-Division Conical Valve Spring Kit is engineered for Subaru EZ36 platforms. This complete kit includes 16 conical valve springs and 16 lightweight titanium retainers, designed to deliver consistent valve control under high RPM conditions.
Conical Design for Harmonic Damping
Featuring a true conical shape, these springs naturally dampen valvetrain harmonics—reducing stress and wear while improving stability. Ideal for builds pushing elevated RPMs and aggressive cam profiles.
Technical Specifications
| Setup | Coil Bind (in) | Install Height (in) | Seat Pressure (lbs) | Open Pressure @ 10.15mm Lift | Max Valve Lift (in) |
|---|---|---|---|---|---|
| Conical | 0.807 | 1.300 | 86 | 230 @ 0.900" | 0.433 |
Performance Limits
- Max RPM: 9,000 RPM
Fitment Guide
- Subaru EZ36 3.6L DOHC Flat-6 Engine
- 2008–2014 Subaru Tribeca 3.6L
- 2010–2019 Subaru Outback 3.6R
- 2010–2019 Subaru Legacy 3.6R
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
