Manley Ford 4.6L/5.4L DOHC NexTek Series High Performance Valve Springs (4 valves per cylinder)

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.

This Part Fits:

Year	Make	Model	Submodel
2005-2006	Ford	GT	Base
2007-2008	Ford	Mustang	Shelby GT500
1999,2001	Ford	Mustang	SVT Cobra
2000	Ford	Mustang	SVT Cobra R