GSC P-D Subaru EJ Series Dual Conical Valve Spring Kit

If you're building a high-performance Subaru EJ series engine, especially one that's going to see a lot of track time or aggressive street use, you'll want to pay close attention to your valve springs. The stock springs can sometimes struggle to keep up when you start pushing the engine harder, especially with more aggressive camshafts. This GSC Power Division Dual Conical Valve Spring Kit is designed to give your EJ engine the valve control it needs to perform reliably at higher RPMs and with more demanding camshaft profiles.

What makes these springs stand out is their dual conical design. This unique shape allows for a smaller, lighter retainer, which in turn reduces the overall mass that the valve train has to move. This not only helps prevent valve float at high engine speeds but also reduces wear on other valve train components. The springs themselves are made from high-grade materials, built to withstand the heat and stress of performance engine operation. They are specifically matched to work with GSC's own line of camshafts, ensuring a well-coordinated valve train setup, but they can also be a solid upgrade for other performance camshaft applications. This kit includes everything you need to replace the stock springs, giving you a complete solution for improved valve control.

When installing these, it's crucial to ensure your camshafts are compatible with the spring pressures. GSC recommends using their own camshafts for the best results, as they've engineered these springs to complement their profiles. Make sure you have the proper tools for valve spring compression and installation, as this is a job that requires precision. A well-built valve train is key to unlocking the full potential of a performance EJ engine, and this kit is a significant step in that direction.