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.
Manley Ford 4.6L/5.4L DOHC NexTek Series High Performance Valve Springs (Single)
Tightly controlled open-end flatness reduces valve stem side loading
Manufactured from “super clean” Hi-Tensile Chrome Silicon steel
Proprietary multi-step heat treating minimizes load loss
Tip thickness designed to eliminate overload breakage
Shot-peened to MIL spec for max fatigue life
Manley Valve Spring, SPRING-1.126 SINGLE.
Manley Valve Spring, SPRING-1.126 SINGLE
Manley Valve Spring, 1.126 SINGLE
Engine Valve Spring
SPRING-1.126 SINGLE
Valve Spring
