- Advanced Spring Design with special attention to cam and spring harmonics, stress, mass and operating RPM
- Premium-grade, super clean ground chrome silicon wire
- Heat treated and shot-peened for long life
- Kits include 8 retainers, 8 springs and 8 basewashers (NOTE: Kit 20-21200 does not require basewashers, it is compatible with OE seals or Tophat valve seals (71046)
Order No. 20-21000: .465" Max. Lift | 1.410" Installed Height | 80 lbs. Seat Pressure | 212 lbs. Open Pressure at .465" lift
Order No. 20-21050: .465" Max. Lift | 1.410" Installed Height | 80 lbs. Seat Pressure | 212 lbs. Open Pressure at .465" lift
Order No. 20-21200: .550" Max. Lift | 1.550" Installed Height | 104 lbs. Seat Pressure | 230 lbs. Open Pressure at .550" lift
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