Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 Dial in the exact style

Dial in the exact style you want in minutes with the included spanner wrench

adding strength to the entire rear chassis and suspension

These mufflers are available in 439 stainless steel

It features double shear mounts to add optional drive shaft loop P/N 2204

2336 - 1993-2002 F-Body Front Upper A-Arm Mounts

Manley Valve Spring, SPRING-1.640 DOUBLE 2001-ford-f-150-esi1856872 Dial in the exact styleFrom 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.