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The S&S CYCLE Valve Spring Kit (Part Number 900-0958) is engineered for high-performance applications on M8 engines. Designed with a conical single wire construction, this valve spring supports valve lifts up to 0.605 inches, making it suitable for aggressive camshaft profiles and increased engine performance. The springs feature an installed height of 1.535 inches and can handle a maximum spring pressure of 364 pounds at full lift, ensuring reliable valve operation under demanding conditions. Made in the USA, this kit is ideal for enthusiasts seeking durability and optimized engine efficiency. It includes all necessary components such as springs, keepers, top collars, bottom collars, and seals, providing a comprehensive solution for valve train upgrades. The heavy-duty design ensures consistent performance at engine speeds up to 6,500 RPM, making it suitable for street and performance applications alike. Installation is straightforward, and the components are manufactured to precise specifications for a secure fit and long-lasting durability. Whether you're upgrading for increased horsepower or improving reliability, this valve spring kit offers a robust, reliable upgrade for your M8 engine's valve train.
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