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 |  SKU: GSC5256

GSC Dual Valve Spring & Ti Retainer Kit

Subaru FA20 Engines
$959.95
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Description

The GSC Power-Division Dual Valve Spring Kit with Titani9um Retainers for the Subaru 2015 WRX, BRZ and Scion FRS includes 16 titanium retainers, 16 dual valve spring sets, and 16 spring seats. This dual cylindrical set is made from the same high quality wire as our Beehive Kits and utilizes a Nano-peened finishing process to allow for the lowest possible fatigue loss rate. 

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.

Technical Specifications

  • Setup: Dual
  • Coil Bind (in): 0.782
  • Install Height (in): 1.299 / 1.303
  • Seat Pressure (lbs): 102 / 100
  • Open Pressure: 257lbs @ 0.846" / 256lbs @ 0.850" ( 11.50mm Lift )
  • Maximum Valve Lift (in): 0.453
  • IN: 102 lbs @ 1.299" / EX: 100 lbs @ 1.303" install height
  • IN: 257 lbs @ 0.846" / EX: 256 lbs @ 0.850"
  • Max rpm: 9,500 RPM
  • Max Boost: 50 psi

Fitment Table