Enhance the performance of your BMW S63 engine with the SuperTech High Performance Valve Spring Kit. This precision-engineered kit offers a notable seat pressure of 83 lbs and accommodates a maximum lift of 12 mm, ensuring optimal valve operation even at high RPMs. Designed to replace OEM part numbers: 11340039494, 11340054492, 11347578825, 11347572451, 11347504271, 11347614134, and 11340150843, this kit is the ideal upgrade for serious enthusiasts and racers alike. Kit Contents: (32) High Performance Valve Springs (32) High Performance Steel Retainers (32) Viton Valve Stem Seals Supertech is renowned for its commitment to quality. Each valve spring is crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, providing exceptional durability and performance. The advanced computer-aided design ensures that stress limits are safely maintained, while precise control of harmonics maximizes reliability under extreme conditions. The included high-grade steel retainers undergo meticulous CNC machining, ensuring a perfect fit and enhanced stability during operation. Additionally, this kit features Viton valve stem seals, specifically designed to resolve common factory seal issues. These seals are crucial in preventing oil from entering the combustion chamber, thereby reducing oil consumption and eliminating blue smoke from the exhaust caused by seal failure. Opt for the Supertech High Performance Valve Spring Kit and invest in a solution that delivers both performance and peace of mind for your BMW S63 engine. This kit is a trusted choice for those seeking reliable enhancements that stand up to the demands of performance racing. Conical Spring KitSeat Pressure: 83 @ 35.7mmOpen Pressure: 165 @ 10mmMax Lift: 11.2mmCoil Bind: 23.00mmOuter Spring ID: 17.20mmRetainer: RET-BMN54-TERate: 8.2Inner Spring ID: 14.20mmInner Spring OD: 21.00mmOuter Spring OD: 24.00mmSeat Locator: VSI-EC60E Installation requires the expertise of an engine builder.
