Kelford Extreme Racing Valve Spring Kit, BMW S58

High Energy, Extreme Racing Valve Springs designed for BMW 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. 

• 110lb seat pressure at 34.6mm installed height
• 210lb at 10.8mm valve lift
• Spring coil bind height at 22.8mm