Manley NexTek High Performance Valve Springs

NexTek Valve Springs...Better By Design!

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.

Features:

Manufactured from ''super clean'' HiTensile Chrome Silicon steel

Shotpeened to MIL Specs for maximum fatigue life

Proprietary multistep heat treating minimizes load loss

Tightly controlled open end flatness reduces valve stem side loading

Tip thickness designed to eliminate overload breakage

Specially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities

These Manley NexTek valve springs are available in Polished and Super Finished versions to reduce friction, improve fatigue life and minimize load loss

Super Finished is multi-step surface enhancement that significantly improves fatigue strength

Click Here to see Valve Springs Load Chart

Manley NexTek High Performance Valve Springs

GM LS-Series

Manley NexTek H.P. Valve Spring GM LS-series

Manley NexTek H.P. Valve Spring GM LS-series

Manley NexTek H.P. Valve Springs GM LS-series

Manley NexTek H.P. Valve Springs GM LS-series

Manley Super Finished NexTek H.P. Valve Spring GM LS-series

Manley Super Finished NexTek H.P. Valve Spring GM LS-series

Manley Super Finished NexTek H.P. Valve Springs GM LS-series

Manley Super Finished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Spring GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Polished NexTek H.P. Valve Springs GM LS-series

Manley Super Finished NexTek H.P. Valve Spring GM LS-series

Manley Super Finished NexTek H.P. Valve Spring GM LS-series

Chrysler 5.7L/6.1L HEMI

Manley Super Finished NexTek H.P. Valve Spring 5.7/6.1L HEMI

Manley Super Finished NexTek H.P. Valve Spring 5.7/6.1L HEMI

Manley Super Finished NexTek H.P. Valve Springs 5.7/6.1L HEMI

Manley Super Finished NexTek H.P. Valve Springs 5.7/6.1L HEMI

Manley Super Finished NexTek H.P. Valve Spring HEMI Drag Pak

Manley Super Finished NexTek H.P. Valve Spring HEMI Drag Pak

Manley Super Finished NexTek H.P. Valve Springs HEMI Drag Pak

Manley Super Finished NexTek H.P. Valve Springs HEMI Drag Pak

Chrysler 6.4L HEMI

Manley Super Finished NexTek H.P. Valve Spring 6.4L HEMI

Manley Super Finished NexTek H.P. Valve Spring 6.4L HEMI

Manley Super Finished NexTek H.P. Valve Springs 6.4L HEMI

Manley Super Finished NexTek H.P. Valve Springs 6.4L HEMI

Ford 4.6L/5.4L

Manley NexTek H.P. Valve Spring 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Spring 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Springs 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Springs 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Spring 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Spring 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Springs 4.6/5.4L SOHC 2V

Manley NexTek H.P. Valve Springs 4.6/5.4L SOHC 2V

Manley Super Finish NexTek H.P. Valve Spring 4.6/5.4L SOHC 3V

Manley Super Finish NexTek H.P. Valve Spring 4.6/5.4L SOHC 3V

Manley Super Finish NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Manley Super Finish NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Manley NexTek H.P. Valve Spring 4.6/5.4L DOHC 4V

Manley NexTek H.P. Valve Spring 4.6/5.4L DOHC 4V

Manley NexTek H.P. Valve Springs 4.6/5.4L DOHC 4V

Manley NexTek H.P. Valve Springs 4.6/5.4L DOHC 4V

Manley Polished NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Manley Polished NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Manley Polished NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Manley Polished NexTek H.P. Valve Springs 4.6/5.4L SOHC 3V

Ford 5.0L Coyote

Manley Super Finished NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V

Manley Super Finished NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V

Manley Super Finished NexTek H.P. Valve Springs 5.0L Coyote DOHC 4V

Manley Super Finished NexTek H.P. Valve Springs 5.0L Coyote DOHC 4V

Manley NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V

Manley NexTek H.P. Valve Spring 5.0L Coyote DOHC 4V