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    1. PAC-1246-16 PART NUMBER
      PAC Circle Track Endurance Valve Springs PAC-1200
      PAC 1200 Series Drag Race Valve Springs PAC-1246
      $495.86
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      Triple Spring, 1.645" Outer Diameter, 1.195" ID of outer spring, 0.871" ID of middle spring, 0.635" ID of inner spring, Seat Pressure 250 @ 2.050, Open Pressure 801 @ 1.250, Coil Bind 1.130", Set of 16 Springs

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    2. PAC-1239-16 PART NUMBER
      PAC Circle Track Endurance Valve Springs PAC-1200
      PAC Circle Track Endurance Valve Springs PAC-1239
      $444.72
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      Dual Spring, 1.550" Outer Diameter, 1.126 ID outer, .720" Inner Diameter, Seat Pressure 220 @ 2.050, Open Pressure 625 @ 1.300, Coil Bind 1.180", Set of 16 Springs

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    Engines
    CNC-Motorsports offers the best crate engines and race engines you can buy. We specialize in domesti...
    Engine Parts
    CNC-Motorsports offers the best brands in aftermarket performance auto parts. We specialize in perfo...
    Air & Fuel > Carburetor Accessories
    Air & Fuel > Carburetor Accessories > Metering Blocks & Conversion Kits
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    YOUR SOURCE FOR Custom & High Performance Engine Parts Complete Engine Short Block Rot...
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    1. Installed Height
      2.050"
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    Pump Rotation
    1. Standard 0 items
    2. Reverse 0 items
    Part Types
    1. Engine Valve Spring 2 items
    2. Hardware 2 items
    Price
    Coil Bind
    1. 1.130 1 item
    2. 1.180 1 item
    Installed Height
    1. .050 Longer 1 item
    2. .100 Longer 32 items
    3. .200 Longer 16 items
    4. .250 Longer 14 items
    5. .300 Longer 5 items
    6. .350 Longer 3 items
    7. .500 Longer 1 item
    8. .600 Longer 8 items
    9. .700 Longer 4 items
    10. 1.350 3 items
    11. 1.400 1 item
    12. 1.420 1 item
    13. 1.470 3 items
    14. 1.500 2 items
    15. 1.550 3 items
    16. 1.570 2 items
    17. 1.570" 1 item
    18. 1.590 1 item
    19. 1.600 2 items
    20. 1.600" 1 item
    21. 1.640 1 item
    22. 1.640" 4 items
    23. 1.650 3 items
    24. 1.650" 1 item
    25. 1.680" 2 items
    26. 1.700 11 items
    27. 1.700" 3 items
    28. 1.750 6 items
    29. 1.750" 6 items
    30. 1.770 1 item
    31. 1.780 1 item
    32. 1.800 37 items
    33. 1.800" 32 items
    34. 1.810 14 items
    35. 1.810" 1 item
    36. 1.835 1 item
    37. 1.835" 2 items
    38. 1.850 5 items
    39. 1.850" 1 item
    40. 1.880 4 items
    41. 1.900 14 items
    42. 1.900" 3 items
    43. 1.925 1 item
    44. 1.940" 1 item
    45. 1.950 10 items
    46. 1.950" 2 items
    47. 1.975 1 item
    48. 2.000 13 items
    49. 2.000" 17 items
    50. 2.050 9 items
    51. 2.050" 2 items
    52. 2.070" 2 items
    53. 2.100 5 items
    54. 2.100" 9 items
    55. 2.150 6 items
    56. 2.175" 1 item
    57. 2.200 6 items
    58. 2.200" 8 items
    59. 2.300 12 items
    60. Stock 96 items
    61. 2.250 1 item
    62. 2.350 3 items
    63. 1.980 1 item
    64. 2.030 2 items
    65. 1.875 1 item
    66. 1.688 1 item
    67. 2.550 1 item
    68. 2.060 2 items
    69. 1.575 4 items
    70. 1.811 2 items
    Number of Springs
    1. Dual 1 item
    2. Triple 1 item
    Outer Spring Outer Diameter
    1. 1.550 1 item
    2. 1.645 1 item
    Spring Rate (LBS./IN.)
    1. 540 1 item
    2. 689 1 item
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