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  • Hydraulic Roller Spring 1.290 O.D.
  • Premium Grade Chrome Silicon
  • 140 lbs. on seat
  • .600” max lift
  • Max RPM 6300-6500
  • SBC/SBF Steel Retainer: 8514
  • SBC/SBF Titanium Retainer: 8515
  • SBC/SBF Valve Lock: 9007
  • LSx Titanium Retainer: 8512
  • LSx Valve Lock: 9007