Single Valve Spring

• Type: Single Spring
• OutSpr.OD: 27.50mm
• OutSpr.ID: 20.00mm
• Press.Seat: 85 @30.6
• Press.Open: 171@9
• Max Lift: 9.90mm
• Coil Bind: 20.70mm
• Rate: 9.60
• Retainer: RET-NVG1015/T1 + Intake OE seat+ Exhaust SS-2820-E+OE