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  • PAC Racing Springs
  • 1.550” OD Solid Roller Dual Race Spring
  • 220 lbs. on seat
  • .710” 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
  • 1 piece or set of 16

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