Supertech Nissan KA24 Dual Valve Spring Kit

The Supertech Nissan KA24 Dual Valve Spring Kit uses a spring rate of 240 lbs/in, which is a notable increase over stock. This higher spring rate is crucial for keeping the valves under control at higher engine speeds. When you're pushing your KA24 engine beyond its factory limits, especially with a performance camshaft, the stock springs can struggle to close the valves quickly enough. This can lead to valve float, where the valve doesn't seat properly, causing a loss of compression and potentially damaging the engine. This kit is designed to prevent that.

This kit includes dual springs, meaning each valve gets two springs working together. This setup offers more stability and control compared to single springs, especially under the stress of aggressive camshaft profiles and increased RPMs. The springs are made from high-strength spring steel, chosen for its ability to withstand the constant compression and release cycles without losing its tension over time. This well-built construction helps ensure consistent performance and longevity, even in demanding applications where the engine is frequently operated at its limits.

When rebuilding or significantly upgrading the top end of your Nissan KA24 engine, a dual valve spring kit like this is a fundamental component. It works in conjunction with your camshafts to ensure precise valve timing and prevent valve float. Make sure to consult your engine build specifications to confirm this spring rate is appropriate for your chosen camshafts and intended use. This kit is a solid option for enthusiasts looking to build a more robust and higher-revving KA24 engine.