Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededMANLEYPART NUMBER: 660-221437-1
NexTek H.P. Valve Spring 4.6/5.4L SOHC 2V
$2283
Ships on 09/09/2026
Lowest Price GuaranteeFord 4.6L/5.4L
- NexTek H.P. Valve Spring
- 4.6/5.4L 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.
Ford 4.6L, 5.4L SOHC 2-Valve stock diameter hydraulic roller applications, Ideal for boosted applications.
- Type of Spring: Single Conical Ovate Wire
- Color Code: Plain
- Installed Height and Pressure: 1.680' @ 125 lbs./in.
- Open Height and Pressure: 1.130' @ 265 lbs./in.
- Spring Rate: 255 lbs./in.
- O.D. of Outer Spring: 1.030' Top / 1.175' Bottom
- I.D. of Outer Spring: 0.642' Top / 0.787' Bottom
- I.D. of Middle Spring: N/A
- I.D. of Inner Spring: N/A
- Coil Bind height: 1.080'
- Weight: 56 grams
- Damper Included: No
Click Here to see 660-221437 Valve Spring Load Chart
Part TypeValve Spring
BrandMANLEY
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number221437-1
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
![Valve Spring Micrometer [1.400 in. - 1.800 in. Height Range]](https://www.jegs.com/images/mini_200/500/555/555-80535.jpg)
JEGS
Valve Spring Micrometer [1.400 in. - 1.800 in. Height Range]
Part Number : 555-80535
$4199$46.99
You Save$5.00
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
![Valve Spring Micrometer [1.800 in. - 2.200 in. Height Range]](https://www.jegs.com/images/mini_200/500/555/555-80536.jpg)
JEGS
Valve Spring Micrometer [1.800 in. - 2.200 in. Height Range]
Part Number : 555-80536
$6899$75.99
You Save$7.00
JEGS
Part Number : 555-80535
$4199$46.99
You Save$5.00
Some parts are not legal for use in California or other states with similar laws / regulations
