GSC Dual Conical Valve Spring Set & Titanium Retainer (EJ20, EJ25)

The GSC Power-Division Dual Conical Valve Spring Kit with Ti Retatiner & Chromoly Seats for the Subaru EJ platforms includes 16 titanium retainers, 16 dual conical valve spring sets, and 16 chromoly valve spring seats.

Conical Spring Benefits

  • Vastly improved harmonic stability with inherent self-damping design
  • Smaller design = weight reduction throughout the entire valvetrain system
  • Applications for high RPM and boost pressure with the ability to run more aggressive camshafts
  • State of the art manufacturing and engineering production processes
SKU
GSC5074
$604.01

 

GSC Power-Division was started to fill the need for high-quality performance camshafts and valve train components for the Japanese sport compact cars of today. With little worthwhile offerings in the market, and a passion for quality and performance, GSC offers cutting-edge designed camshafts and valve train components that are lighter and handle the most extreme conditions of the turbo sport compact engine.

The GSC Power-Division Dual Conical Valve Spring Kit with Ti Retatiner & Chromoly Seats for the Subaru EJ platforms includes 16 titanium retainers, 16 dual conical valve spring sets, and 16 chromoly valve spring seats.

True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional cylindrical or beehive springs is the damping and removal of valvetrain harmonics. Of the three designs, conical springs are the front runners in valvetrain harmonic stability. Utilizing a varying coil diameter as well as coil spacing, a conical spring acts as a natural harmonic damper in the transfer of valvetrain shock. This translates to less stress, less wear, and a longer life of the included components. This level of protection is needed in today’s engines being pushed to their physical and mechanical limits by aftermarket modifications.

Every GSC conical spring offers a superfinished surface treatment to go along with the patented, multi-step heat treatment process. The finished product is an extremely reliable, high-performance spring allowing the users to push higher RPMs, use more aggressive cam profiles, and turn up higher boost pressures.

 

Coil Bind (in) Install Height (in) Seat Pressure Open Pressure, 11.5mm lift Maximum Valve Lift (in)
0.790 1.368/1.092 95

233 lbs @ 0.915"/0.639

0.512

 

Fitment

  • EJ20
  • EJ25

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

 

More Information
SKU GSC5074
Product Type Engine
Brand GSC Performance
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