Ferrea Nissan SR20DE/SR20DET Dual Valve Spring - Set of 16

This set includes 16 Ferrea dual valve springs, specifically designed for Nissan SR20DE and SR20DET engines. These springs are a critical component for anyone rebuilding or significantly modifying their engine, especially when aiming for higher RPMs or more aggressive camshaft profiles. They are engineered to handle the increased demands placed on the valvetrain under these conditions, ensuring reliable operation and preventing valve float.

Ferrea is known for its well-built engine components, and these dual springs are no exception. They are constructed from high-strength spring wire, heat-treated and stress-relieved to maintain their integrity and consistent pressure over time. The dual spring design offers superior dampening and stability compared to single springs, which is essential for preventing resonance and ensuring the valves close precisely. This setup is particularly beneficial for forced induction applications where cylinder pressures are higher and the valvetrain is subjected to more stress.

When installing these springs, it's important to ensure your camshafts are compatible with the spring's pressure and travel specifications. Proper installation, including correct spring seat machining and retainer selection, is crucial for optimal performance and longevity. This set is designed to be a direct replacement for the factory springs, simplifying the installation process for experienced engine builders. If you're building a performance SR20 engine, these Ferrea dual valve springs are a solid option to support your goals.