BMW S85 Valve Springs by SuperTech

SuperTech’s high-performance valve spring kits are precision-engineered for BMW S85 engines, delivering superior valve control and reliability under high-stress conditions. These kits include all necessary components for installation and are a direct replacement for BMW part numbers 11347837681, 11347835154, and 11347838295. Built to withstand the demands of high-lift camshafts in the E60 / E61 / E63 / E64 M5, these valve springs are made from premium materials, ensuring optimal performance and longevity. With increased spring rates, they provide enhanced valve stability and control compared to OEM springs, minimizing the risk of valve float at high RPM. SuperTech's dedication to quality and precision makes these kits a preferred choice among engine builders seeking to achieve peak performance with unwavering reliability. Rate: 10.3lbs/mm Spring Top OD: 21.6 mm Spring Bottom OD: 26.50 mm Coil Bind: 27 mm Installation requires the expertise of an engine builder. BMW S85 Applications: BMW 5 Series 2005 - 2010     BMW E60/E61     M5 BMW 6 Series 2005 - 2010     BMW E63/E64     M6