Valve Springs - Nissan SOHC

Valve Springs - Nissan SOHC by ISKY CAMS are engineered for enthusiasts and engine builders seeking reliable valve train control on single-overhead-cam Nissan engines. These dual-spring assemblies maintain precise valve timing and lift throughout the RPM range, preventing valve float and ensuring consistent engine performance. Whether you're restoring an original engine or upgrading a performance build, quality valve springs are essential to protect against valve seat wear and maintain fuel efficiency.

Each set of eight valve springs features a 280 lb/in spring rate, delivering the correct amount of pressure to keep valves seated without excessive drag on camshaft lobes. The 1.340-inch outer diameter and 0.970-inch coil bind dimension are precisely matched to Nissan SOHC cylinder heads, ensuring proper fitment and function. The dual-spring design reduces surging across a wider power band, a critical advantage over single-spring alternatives. ISKY CAMS' manufacturing standards guarantee consistent valve control from idle to high RPM operation, minimizing the risk of valve recession and extending engine life.

Technicians and DIY builders working on Nissan SOHC platforms—including classic Z-series, A-series, and early L-series engines—will appreciate the straightforward installation and immediate reliability of this set. Replacement valve springs are typically installed during top-end rebuilds, head gasket service, or when upgrading to a higher-lift camshaft. Proper spring selection ensures that your valve train components work in harmony, preventing costly damage to pushrods, rocker arms, and valve guides. This complete set of eight springs comes ready for installation on most Nissan SOHC heads without additional machining.