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NexTek H.P. Valve Spring
  • 6.4L HEMI
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 353 lbs./in. Spring Rate
  • 145 @ 1.811'' Installed
  • 380 @ 1.150'' Open
  • 0.650'' Max Valve Lift
  • 1.100'' Coil Bind
  • Single Conical Ovate Wire
  • 1/pkg.
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    $30.99
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    $21.99
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    NexTek H.P. Valve Spring
  • 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
  • 1/pkg.
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    $21.99
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    $392.99
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    NexTek H.P. Valve Springs
  • 4.6/5.4L SOHC 3V
  • 1.101'' O.D.
  • 0.650'' I.D.
  • 258 lbs./in. Spring Rate
  • 110 @ 1.670'' Installed
  • 260 @ 1.090'' Open
  • 0.580'' Max Valve Lift
  • 1.020'' Coil Bind
  • Single Conical Ovate Wire
  • 24/pkg
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    $392.99
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    $26.99
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    NexTek H.P. Valve Spring
  • 5.7/6.1L HEMI
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 353 lbs./in. Spring Rate
  • 145 @ 1.811'' Installed
  • 370 @ 1.161'' Open
  • 0.650'' Max Valve Lift
  • 1.100'' Coil Bind
  • Single Conical Ovate Wire
  • 1/pkg.
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    $26.99
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    $27.99
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    NexTek H.P. Valve Spring
  • 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
  • 1/pkg.
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    $27.99
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    $22.99
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    NexTek H.P. Valve Spring
  • GM LS-series
  • 1.311'' O.D.
  • 0.650'' I.D.
  • 341 lbs./in. Spring Rate
  • 150 @ 1.800'' Installed
  • 355 @ 1.200'' Open
  • 0.600'' Max Valve Lift
  • 1.085'' Coil Bind
  • Single Conical Ovate Wire
  • 1/pkg.
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    $22.99
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