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Polished NexTek Oval Track/Endurance Valve Springs
  • 1.570'' O.D.
  • 0.760'' I.D.
  • 534 lbs./in. Spring Rate
  • 255 @ 2.000'' Installed
  • 630 @ 1.300'' Open
  • 0.700'' Max Valve Lift
  • 1.190'' Coil Bind
  • Double Spring with Damper
  • 16/pkg.
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    $549.99
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    Polished NexTek Oval Track/Endurance Valve Springs
  • 1.570'' O.D.
  • 0.750'' I.D.
  • 575 lbs./in. Spring Rate
  • 280 @ 2.030'' Installed
  • 700 @ 1.300'' Open
  • 0.730'' Max Valve Lift
  • 1.215'' Coil Bind
  • Double Spring with Damper
  • 16/pkg.
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    $549.99
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    $574.99
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    NexTek H.P. Valve Springs
  • 4.6/5.4L DOHC 4V
  • 1.126'' O.D.
  • 0.640'' I.D.
  • 330 lbs./in. Spring Rate
  • 95 @ 1.420'' Installed
  • 270 @ 0.895'' Open
  • 0.525'' Max Valve Lift
  • 0.860'' Coil Bind
  • Single Conical Ovate Wire
  • 32/pkg.
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    $574.99
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    $576.99
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    NexTek Drag Race Valve Springs
  • 1.677'' O.D.
  • 0.635'' I.D.
  • 746 lbs./in. Spring Rate
  • 350 @ 2.000'' Installed
  • 895 @ 1.270'' Open
  • 0.800'' Max Valve Lift
  • 1.160'' Coil Bind
  • Triple Spring (No Damper)
  • 16/pkg.
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    $576.99
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    $514.99
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    NexTek H.P. Valve Springs
  • 5.0L Coyote DOHC 4V
  • 1.101'' O.D.
  • 0.650'' I.D.
  • 258 lbs./in. Spring Rate
  • 120 @ 1.640'' Installed
  • 275 @ 1.040'' Open
  • 0.600'' Max Valve Lift
  • 0.970'' Coil Bind
  • Single Conical Ovate Wire
  • 32/pkg.
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    $514.99
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    $662.99
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    NexTek Lightweight Dual Drag Race Valve Springs
  • 1.500'' O.D.
  • 0.710'' I.D.
  • 780 lbs./in. Spring Rate
  • 275 @ 2.050'' Installed
  • 940 @ 1.200'' Open
  • 0.850'' Max Valve Lift
  • 1.130'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $662.99
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    $735.99
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    NexTek Drag Race Valve Springs
  • 1.677'' O.D.
  • 0.632'' I.D.
  • 770 lbs./in. Spring Rate
  • 370 @ 2.200'' Installed
  • 1140 @ 1.200'' Open
  • 1.000'' Max Valve Lift
  • 1.142'' Coil Bind
  • Triple Spring (No Damper)
  • 16/pkg.
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    $735.99
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    $694.99
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    NexTek Lightweight Dual Drag Race Valve Springs
  • 1.500'' O.D.
  • 0.710'' I.D.
  • 800 lbs./in. Spring Rate
  • 405 @ 2.150'' Installed
  • 1165 @ 1.200'' Open
  • 0.950'' Max Valve Lift
  • 1.130'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $694.99
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    $665.99
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    NexTek Drag Race Valve Springs
  • 1.677'' O.D.
  • 0.632'' I.D.
  • 720 lbs./in. Spring Rate
  • 350 @ 2.200'' Installed
  • 1070 @ 1.200'' Open
  • 1.000'' Max Valve Lift
  • 1.142'' Coil Bind
  • Triple Spring (No Damper)
  • 16/pkg.
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    $665.99
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    $539.99
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    Polished NexTek Oval Track/Endurance Valve Springs
  • 1.620'' O.D.
  • 0.852'' I.D.
  • 500 lbs./in. Spring Rate
  • 280 @ 2.050'' Installed
  • 680 @ 1.250'' Open
  • 0.800'' Max Valve Lift
  • 1.200'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $539.99
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    $502.99
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    NexTek H.P. Valve Spring Kit
  • GM LS-series
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 353 lbs./in. Spring Rate
  • 150 @ 1.800'' / 375 @ 1.150''
  • 0.600'' Max Valve Lift
  • Single Conical Ovate Wire
  • Standard 7° Steel Retainer
  • Viton Valve Seals
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    $502.99
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    $652.99
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    NexTek Lightweight Dual Drag Race Valve Springs
  • 1.500'' O.D.
  • 0.710'' I.D.
  • 800 lbs./in. Spring Rate
  • 330 @ 2.100'' Installed
  • 1050 @ 1.200'' Open
  • 0.900'' Max Valve Lift
  • 1.130'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $652.99
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    $736.99
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    Super Finished NexTek Oval Track/Endurance Valve Springs
  • 1.550'' O.D.
  • 0.800'' I.D.
  • 618 lbs./in. Spring Rate
  • 250 @ 2.025'' Installed
  • 750 @ 1.200'' Open
  • 0.825'' Max Valve Lift
  • 1.150'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $736.99
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    $656.99
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    NexTek H.P. Valve Springs
  • 5.0L Coyote DOHC 4V
  • 1.014'' O.D.
  • 0.533'' I.D.
  • 236 lbs./in. Spring Rate
  • 90 @ 1.570'' Installed
  • 225 @ 1.000'' Open
  • 0.570'' Max Valve Lift
  • 0.904'' Coil Bind
  • Single Conical Ovate Wire
  • 32/pkg.
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    $656.99
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    $629.99
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    NexTek H.P. Valve Spring Kit
  • GM LS-series
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 353 lbs./in. Spring Rate
  • 150 @ 1.800'' / 375 @ 1.150''
  • 0.600'' Max Valve Lift
  • Single Conical Ovate Wire
  • 10° H-13 Tool Steel Retainer
  • Viton Valve Seals
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    $629.99
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    $549.99
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    NexTek H.P. Valve Spring Kit
  • GM LS-series
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 353 lbs./in. Spring Rate
  • 150 @ 1.800'' / 375 @ 1.150''
  • 0.650'' Max Valve Lift
  • Single Conical Ovate Wire
  • +.050" 7° Titanium Retainer
  • Viton Valve Seals
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    $549.99
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    $596.99
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    NexTek H.P. Double Valve Spring Kit
  • GM Gen V LT4
  • 1.340 in. O.D.
  • 0.726 in. I.D.
  • 394 lbs.-in. Spring Rate
  • 170 @ 1.810 / 450 @ 1.110 in.
  • 0.700 in. Max Lift
  • 7 Degree Titanium Retainer
  • Viton Valve Seals
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    $596.99
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    $588.99
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    Polished NexTek Drag Race Valve Springs
  • 1.640'' O.D.
  • 0.860'' I.D.
  • 604 lbs./in. Spring Rate
  • 280 @ 2.100'' Installed
  • 795 @ 1.250'' Open
  • 0.900'' Max Valve Lift
  • 1.150'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $588.99
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    $594.99
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    Polished NexTek Oval Track/Endurance Valve Springs
  • 1.580'' O.D.
  • 0.832'' I.D.
  • 535 lbs./in. Spring Rate
  • 235 @ 1.950'' Installed
  • 610 @ 1.250'' Open
  • 0.730'' Max Valve Lift
  • 1.170'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $594.99
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    $681.99
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    Super Finished NexTek Oval Track/Endurance Valve Springs
  • 1.400'' O.D.
  • 0.700'' I.D.
  • 575 lbs./in. Spring Rate
  • 240 @ 2.050'' Installed
  • 700 @ 1.250'' Open
  • 0.800'' Max Valve Lift
  • 1.150'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $681.99
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    $604.99
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    Polished NexTek Drag Race Valve Springs
  • 1.650'' O.D.
  • 0.855'' I.D.
  • 635 lbs./in. Spring Rate
  • 290 @ 2.000'' Installed
  • 825 @ 1.150'' Open
  • 0.850'' Max Valve Lift
  • 1.105'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $604.99
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    $575.99
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    Polished NexTek Drag Race Valve Springs
  • 1.640'' O.D.
  • 0.860'' I.D.
  • 647 lbs./in. Spring Rate
  • 250 @ 2.000'' Installed
  • 800 @ 1.150'' Open
  • 0.880'' Max Valve Lift
  • 1.070'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $575.99
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    $542.99
    Ships directly from the manufacturer on 09/28/20
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    Kit-spring/retainer/lock
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    $542.99
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    $709.99
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    Polished NexTek Oval Track/Endurance Valve Springs
  • 1.610'' O.D.
  • 0.842'' I.D.
  • 546 lbs./in. Spring Rate
  • 235 @ 2.050'' Installed
  • 645 @ 1.300'' Open
  • 0.750'' Max Valve Lift
  • 1.220'' Coil Bind
  • Double Spring (No Damper)
  • 16/pkg.
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    $709.99
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    $534.99
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    Kit-spring/retainer/lock
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    $534.99
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