Supertech dual valve springs with retainers for k-series and S2000 engines
- Seated Pressure: 92 lbs at 40.40mm
- Open Pressure: 253 lbs at 12mm
- Coil Bind: 22.7mm
- Rate: 13.2mm
- Outer Spring 30mm OD / 21.8mm ID
- Inner Spring 21.3mm OD / 15.5mm ID
- Valve springs made with premium Superclean Chrome Silicon Vanadium Steel Alloy
- Retainers are made from titanium
- Includes seats
- Computer designed to ensure that wire stress levels do not overpass the limits for long durability
- Works in K20A2, K20A3, K24A2, K24Z3, K20Z1, F20C1, F22C1, K20C2, K20Z3, K24Z7 Engines
