Supertech Nissan SR20DET Dual Valve Spring Kit

This is the Supertech Dual Valve Spring Kit for Nissan SR20DET engines. If you're building a high-performance SR20DET, especially one that's going to see higher RPMs or a more aggressive camshaft profile, upgrading your valve springs is a critical step. Stock springs can struggle to keep up, leading to valve float and potential engine damage at higher engine speeds. This kit gives you the well-built components needed to handle those demands.

Supertech uses high-tensile chrome-silicon wire for these springs, which is known for its strength and ability to withstand repeated stress. The dual spring design means you have an inner and outer spring working together. This setup offers better stability at high RPMs, helps prevent spring surge, and provides a more consistent valve motion. You'll find that this improved control over the valves is essential for maximizing power output and ensuring reliability when you're pushing the engine hard. The kit includes the springs themselves, and you'll want to make sure you have compatible retainers and seats, as these are often sold separately or come with a complete valvetrain kit.

When installing this kit, it's important to follow the manufacturer's specifications closely. Proper installation ensures the springs perform as intended and last for the life of your build. This upgrade is a solid choice for anyone serious about getting the most out of their SR20DET engine, providing the necessary support for more aggressive camshafts and higher redlines.