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PAC-1245-16 PART NUMBER
PAC Circle Track Endurance Valve Springs PAC-1245$418.03Dual Spring, 1.550" Outer Diameter, 1.136 ID outer, .812" Inner Diameter, Seat Pressure 240 @ 2.000, Open Pressure 608 @ 1.300, Coil Bind 1.200", Set of 16 Springs
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PAC-1323-16 PART NUMBER
PAC 1300 Series Drag Race Valve Springs PAC-1323$640.39Dual Spring, 1.551" Outer Diameter, 1.065" ID of outer spring, 0.725" ID of inner spring, Seat Pressure 525 @ 2.350, Open Pressure 1510 @ 1.300, Coil Bind 1.200", Set of 16 Springs
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PAC-1933-16 PART NUMBER
PAC Hot Rod Valve Springs PAC-1933$153.43Hot Rod Single Spring, 1.460" OD Outer, ID Outer 1.060" ID Inner, 0.970", Seat Pressure 109 @ 1.850, Open Pressure 293 @ 1.250, Coil Bind 1.145, Max lift 0.600", Set of 16
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