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  • Solid Roller Dual Valve Spring 1.580 O.D.
  • Erson # E 915043
  • 235 lbs. on seat
  • .730” max lift
  • Max RPM 7200-7400
  • Steel Retainer: 8511
  • Titanium Retainer: 8505
  • SBC/SBF Valve Lock: 9009
  • BBC Valve Lock: 9005
  • BBF Valve Lock: 9010