Kelford Cams Extreme Racing Valve Springs BMW B58 / S58 3.0L

High Energy, Extreme Racing Valve Springs designed for BMW B58 / S58 3.0L inline 6 Engine. High performance, progressively wound PACALOY beehive valve spring with titanium retainers.

This kit utilises a precision machined spring seat to max out the seat pressure for high boost, high horsepower builds. Specifically designed for Kelford Cams Stage 2 & Stage 3 Camshafts for engines making over 1000HP. 

• 105lb seat pressure at 35mm installed height. 
• 210lb at 10.8mm valve lift. 
• Spring coil bind height at 23.6mm.