B18/B20 Valve springs, Set of 8
Stiffer valve spring to be used together with the roller camshaft, will give valve train stability at least to 7500 rpm.
Note: The valve seating area in the cylinder head needs machining.
- Spring rate: 6.9 kg/mm
- Outer diameter: 31.6 mm
- Free spring height: 52.5 mm
- Preload spring height: 46mm
- Coil bind: 27mm
