Manley NexTek (Next Generation) Valve Springs were developed over a decade ago and still offer unequaled performance. The NexTek springs were developed to satisfy the demands of top level engine builders who demanded the absolute highest quality valve springs. Manley Nextek springs can be found in drag race applications ranging from Bracket racers to Top Fuel, in oval track engines across the country on the street and strip.
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GM LS-Series
$15.99
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NexTek H.P. Valve SpringGM 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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$15.99
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$247.99
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NexTek H.P. Valve SpringsGM 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 16/pkg.
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$247.99
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$18.99
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NexTek H.P. Valve SpringGM LS-series 1.311'' O.D. 0.650'' I.D. 353 lbs./in. Spring Rate 150 @ 1.800'' Installed 375 @ 1.150'' Open 0.650'' Max Valve Lift 1.100'' Coil Bind Single Conical Ovate Wire 1/pkg.
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$18.99
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$301.99
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NexTek H.P. Valve SpringsGM LS-series 1.311'' O.D. 0.650'' I.D. 353 lbs./in. Spring Rate 150 @ 1.800'' Installed 375 @ 1.150'' Open 0.650'' Max Valve Lift 1.100'' Coil Bind Single Conical Ovate Wire 16/pkg.
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$301.99
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$15.99
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NexTek H.P. Valve SpringGM LS-series 1.295'' O.D. 0.676'' I.D. 379 lbs./in. Spring Rate 155 @ 1.810'' Installed 405 @ 1.150'' Open 0.660'' Max Valve Lift 1.100'' Coil Bind Double Spring (No Damper) 1/pkg.
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$15.99
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$240.99
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NexTek H.P. Valve SpringsGM LS-series 1.295'' O.D. 0.676'' I.D. 379 lbs./in. Spring Rate 155 @ 1.810'' Installed 405 @ 1.150'' Open 0.660'' Max Valve Lift 1.100'' Coil Bind Double Spring (No Damper) 16/pkg.
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$240.99
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$22.99
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NexTek H.P. Valve SpringGM LS-series 1.340'' O.D. 0.726'' I.D. 394 lbs./in. Spring Rate 170 @ 1.810'' Installed 450 @ 1.110'' Open 0.700'' Max Valve Lift 1.050'' Coil Bind Double Spring (No Damper) 1/pkg.
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$22.99
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$358.99
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NexTek H.P. Valve SpringsGM LS-series 1.340'' O.D. 0.726'' I.D. 394 lbs./in. Spring Rate 170 @ 1.810'' Installed 450 @ 1.110'' Open 0.700'' Max Valve Lift 1.050'' Coil Bind Double Spring (No Damper) 16/pkg.
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$358.99
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$21.99
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NexTek H.P. Valve SpringGM LS-series 1.324'' O.D. 0.676'' I.D. 435 lbs./in. Spring Rate 165 @ 1.800'' Installed 515 @ 1.000'' Open 0.800'' Max Valve Lift 0.900'' Coil Bind Double Spring (No Damper) 1/pkg.
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$21.99
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$358.99
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NexTek H.P. Valve SpringsGM LS-series 1.324'' O.D. 0.676'' I.D. 435 lbs./in. Spring Rate 165 @ 1.800'' Installed 515 @ 1.000'' Open 0.800'' Max Valve Lift 0.900'' Coil Bind Double Spring (No Damper) 16/pkg.
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$358.99
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$33.99
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NexTek H.P. Valve SpringGM LS-series 1.335'' O.D. 0.622'' I.D. 780 lbs./in. Spring Rate 270 @ 1.800'' Installed 870 @ 1.020'' Open 0.780'' Max Valve Lift 0.960'' Coil Bind Double Spring (No Damper) 1/pkg.
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$33.99
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Chrysler 5.7L/6.1L HEMI
$21.99
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NexTek H.P. Valve Spring5.7/6.1L 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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$21.99
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$334.99
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NexTek H.P. Valve Springs5.7/6.1L 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 16/pkg.
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$334.99
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$18.99
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NexTek H.P. Valve SpringHEMI Drag Pak 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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$18.99
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$301.99
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NexTek H.P. Valve SpringsHEMI Drag Pak 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 16/pkg.
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$301.99
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Chrysler 6.4L HEMI
$21.99
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NexTek H.P. Valve Spring6.4L 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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$21.99
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$334.99
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NexTek H.P. Valve Springs6.4L 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 16/pkg.
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$334.99
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Ford 4.6L/5.4L
$17.99
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NexTek H.P. Valve Spring4.6/5.4L SOHC 2V 1.125'' O.D. 0.642'' I.D. 264 lbs./in. Spring Rate 95 @ 1.680'' Installed 240 @ 1.130'' Open 0.580'' Max Valve Lift 1.080'' Coil Bind Single Conical Ovate Wire 1/pkg.
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$17.99
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$280.99
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NexTek H.P. Valve Springs4.6/5.4L SOHC 2V 1.125'' O.D. 0.642'' I.D. 264 lbs./in. Spring Rate 95 @ 1.680'' Installed 240 @ 1.130'' Open 0.580'' Max Valve Lift 1.080'' Coil Bind Single Conical Ovate Wire 16/pkg.
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$280.99
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$18.99
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NexTek H.P. Valve Spring4.6/5.4L SOHC 2V 1.175'' O.D. 0.642'' I.D. 255 lbs./in. Spring Rate 125 @ 1.680'' Installed 265 @ 1.130'' Open 0.580'' Max Valve Lift 1.080'' Coil Bind Single Conical Ovate Wire 1/pkg.
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$18.99
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$301.99
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NexTek H.P. Valve Springs4.6/5.4L SOHC 2V 1.175'' O.D. 0.642'' I.D. 255 lbs./in. Spring Rate 125 @ 1.680'' Installed 265 @ 1.130'' Open 0.580'' Max Valve Lift 1.080'' Coil Bind Single Conical Ovate Wire 16/pkg.
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$301.99
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$14.99
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NexTek H.P. Valve Spring4.6/5.4L 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 1/pkg.
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$14.99
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$354.99
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NexTek H.P. Valve Springs4.6/5.4L 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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$354.99
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$16.99
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NexTek H.P. Valve Spring4.6/5.4L 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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$16.99
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$533.99
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NexTek H.P. Valve Springs4.6/5.4L 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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$533.99
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$13.99
Estimated to ship directly from the manufacturer on 11/21/18
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NexTek H.P. Valve Springs4.6/5.4L SOHC 3V 1.025'' O.D. 0.565'' I.D. 95 @ 1.670'' Installed 230 @ 1.170'' Open 1.100'' Coil Bind Single Conical Ovate Wire 1/pkg.
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$13.99
Estimated to ship directly from the manufacturer on 11/21/18
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$331.99
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NexTek H.P. Valve Springs4.6/5.4L SOHC 3V 1.025'' O.D. 0.565'' I.D. 95 @ 1.670'' Installed 230 @ 1.170'' Open 1.100'' Coil Bind Single Conical Ovate Wire 24/pkg.
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$331.99
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Ford 5.0L Coyote
$17.99
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NexTek H.P. Valve Spring5.0L 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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$17.99
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$602.99
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NexTek H.P. Valve Springs5.0L 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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$602.99
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$14.99
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NexTek H.P. Valve Spring5.0L 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 1/pkg.
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$14.99
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