Kelford Cams High Performance Beehive Valve Spring & Titanium Retainer Kit - Subaru EJ20/25
Nano-peen and gold nitride surface finishing treatments for superior endurance. High frequency, increased seat pressure, low open pressure. Designed specifically for the Subaru flat four. 100lb seat pressure at 35.50mm installed height. Coil bind is at 23.00mm. 12.00mm maximum lift.