The BC SR20DET valve springs and retainer kit is designed for high revving, high RPM engines. Each valve spring is made from a high grade chrome silicone alloy and proprietary manufacturing procedures for consistency.
The retainers are CNC machined from round bar titanium to exact tolerances to ensure a perfect fit with the valve springs.
Seat: 1.550" @ 90lbs
Open: 1.025" @ 220lbs
Coil bind: 0.910"
Works for all RWD SR20DET engines.