Valve Springs

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  1. PAC-1392-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Dual Valve Springs PAC-1392
    $640.39

    Dual Spring, 1.314" Outer Diameter, 0.900 ID outer, .616" Inner Diameter, Seat Pressure 185 @ 2.060, Open Pressure 730 @ 1.260, Coil Bind 1.196", Set of 16 Springs

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  2. PAC-1393-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Dual Valve Springs PAC-1393
    $697.10

    Dual Spring, 1.536" Outer Diameter, 1.100 ID outer, .694" Inner Diameter, Seat Pressure 250 @ 2.000, Open Pressure 773 @ 1.200, Coil Bind 1.154", Set of 16 Springs

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  3. PAC-1529-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Endurance Valve Springs PAC-1529
    $667.08

    Dual Spring, 1.284" Outer Diameter, 0.900 ID outer, .630" Inner Diameter, Seat Pressure 180 @ 1.900, Open Pressure 600 @ 1.150, Coil Bind 1.090", Set of 16 Springs

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  4. PAC-1530-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Endurance Valve Springs PAC-1530
    $733.79

    Dual Spring, 1.284" Outer Diameter, 0.900 ID outer, 0.616" Inner Diameter, Seat Pressure 160 @ 2.000, Open Pressure 580 @ 1.250, Coil Bind 1.180", Set of 16 Springs

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  5. PAC-1590-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Endurance Valve Springs PAC-1590
    $733.79

    Dual Spring, 1.474" Outer Diameter, 1.050 ID outer, 0.754" Inner Diameter, Seat Pressure 250 @ 2.050, Open Pressure 670 @ 1.250, Coil Bind 1.190", Set of 16 Springs

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  6. PAC-1561-1 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC Circle Track Endurance Valve Springs PAC-1561
    $600.00

    Dual Spring, 1.514" Outer Diameter, 1.100 ID outer, 0.804" Inner Diameter, Seat Pressure 250 @ 2.000, Open Pressure 636 @ 1.200, Coil Bind 1.155", Set of 16 Springs

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  7. PAC-1236X-16-1 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC RPM Series Valve Springs PAC-1236X
    $425.82

    Dual Spring, 1.310" Outer Diameter, 0.925" ID outer, .665" Inner Diameter, Seat Pressure 156 @ 1.800, Open Pressure 495 @ 1.100, Coil Bind 1.150", Set of 16 Springs

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  8. PAC-1214X-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC RPM Beehive Series Valve Springs PAC-1214X
    $327.98

    Beehive Spring, 1.071" Bottom 0.708" Top Outer Diameter, .999" Bottom .636" Top Inner Diameter, Seat Pressure 120 @ 1.680, Open Pressure 285 @ 1.080, Coil Bind 1.013, Set of 16

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  9. PAC-1217X-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC RPM Beehive Series Valve Springs PAC-1217X
    $327.98

    Beehive Spring, 0.873" Bottom 1.061" Top Outer Diameter, 0.525" Bottom 0.698" Top Inner Diameter, Seat Pressure 115 @ 1.600, Open Pressure 300 @ 1.000, Coil Bind 0.975, Set of 16

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  10. PAC-1218X-16 PART NUMBER
    PAC Circle Track Endurance Valve Springs PAC-1200
    PAC RPM Beehive Series Valve Springs PAC-1218X
    $327.98

    Beehive Spring, 1.055" Bottom 1.290" Top Outer Diameter, 0.650" Bottom 0.885" Top Inner Diameter, Seat Pressure 140 @ 1.800, Open Pressure 328 @ 1.200, Coil Bind 1.115, Set of 16

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