Supertech Subaru EZ30 (w/Variable Intake Lift) Dual Valve Spring Kit

Built with a specific spring rate of 300 lbs at the full lift, this dual valve spring kit from Supertech is designed for Subaru EZ30 engines that feature Variable Intake Lift (VIL) systems. This kit addresses the demands of higher-performance camshafts by providing the necessary seat pressure and open pressure to keep the valves under control, even at high RPMs. The dual spring design offers improved stability and dampening compared to single springs, which is crucial for preventing valve float and ensuring consistent valve train operation when you're pushing the engine hard.

Supertech uses high-grade materials and advanced manufacturing processes to create valve springs that can withstand the rigorous conditions inside an engine. Each spring is carefully wound and tested to meet precise specifications, ensuring they perform reliably over time. This kit includes everything needed to replace the stock valve springs, allowing for a complete upgrade of the valve train system. Proper installation is key to realizing the full benefits of this kit, so be sure to follow the manufacturer's guidelines for seat pressure and installation height to achieve optimal performance and durability.

When rebuilding or modifying your Subaru EZ30 engine, especially if you're upgrading camshafts or increasing redline, a robust valve spring kit like this one is essential. It ensures that your valves close reliably and quickly, preventing interference with the pistons and maintaining the integrity of your engine under stress. This kit is a solid option for enthusiasts looking to enhance their engine's performance and reliability.