GSC Beehive Valve Spring Kit w/ Titanium Retainers – Subaru FA20 WRX / BRZ / FR-S (GSC5056)
Lightweight, High-RPM Spring Kit for FA20 Engines
The GSC Power-Division Beehive Valve Spring Kit is engineered for Subaru FA20 engines found in the WRX, BRZ, and Scion FR-S. This complete kit includes 16 beehive valve springs, 16 titanium retainers, and 16 spring seats—designed to deliver maximum valvetrain control at elevated RPM and boost levels.
Beehive Design for Superior Performance
Crafted with ovate wire and advanced heat treatment, these springs offer exceptional load retention and fatigue resistance. The beehive shape allows for smaller, lighter retainers—reducing mass and improving valve control at high RPMs. This kit is ideal for aggressive cam profiles and turbocharged setups.
Technical Specifications
| Setup | Coil Bind (in) | Install Height (in) | Seat Pressure (lbs) | Open Pressure @ 11mm Lift | Max Valve Lift (in) |
|---|---|---|---|---|---|
| Beehive | 0.800 | 1.293 / 1.300 | 94 / 92 | 236 @ 0.860" / 234 @ 0.867" | 0.433 |
Performance Limits
- Max RPM: 9,500 RPM
- Max Boost: 35 psi
Fitment Guide
- 2013–2020 Subaru BRZ 2.0L NA (FA20)
- 2013–2016 Scion FR-S 2.0L NA (FA20)
- 2017–2020 Toyota 86 2.0L NA (FA20)
- 2015 Subaru WRX 2.0L Turbo (FA20DIT)
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