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PAC-1225-16 PART NUMBER
PAC 1200 Series Drag Race Valve Springs PAC-1225$418.03Dual Spring, 1.550" Outer Diameter, 1.100" ID of outer spring, 0.788" ID of inner spring, Seat Pressure 250 @ 2.000, Open Pressure 765 @ 1.150, Coil Bind 1.200", Set of 16 Springs
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PAC-1325-16 PART NUMBER
PAC Circle Track Dual Valve Springs PAC-1325$640.39Dual Spring, 1.550" Outer Diameter, 1.100 ID outer, .788" Inner Diameter, Seat Pressure 250 @ 2.000, Open Pressure 765 @ 1.200, Coil Bind 1.150", Set of 16 Springs
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