VALVE SPRING KIT; DUAL VALVE SPRINGS; SPRINGS: SPR-H1021D; RETAINERS: RET-K20A2/T2; SEAT: SEAT-H1020D
Coil Bind: 22.7mm
Inner Spring (OD/ID): 21.3mm / 15.5mm
Max Net Lift: 17.7mm
Outer Spring (OD/ID): 30mm / 21.8mm
Pressure (Open): 261lbs@12mm
Pressure (Seat): 95lbs@40.40mm
Rate: 13.2lbs/mm
