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Vehicle Info NeededMANLEYPART NUMBER: 660-221434-1
NexTek H.P. Valve Spring 4.6/5.4L DOHC 4V
$2017
Ships on 09/09/2026
Lowest Price GuaranteeFord 4.6L/5.4L
- NexTek H.P. Valve Spring
- 4.6/5.4L DOHC 4V
- 1.126'' O.D.
- 0.640'' I.D.
- 330 lbs./in. Spring Rate
- 95 @ 1.420'' Installed
- 270 @ 0.895'' Open
- 0.525'' Max Valve Lift
- 0.860'' Coil Bind
- Single Conical Ovate Wire
- 1/pkg.
Ford 4.6L, 5.4L DOHC 4-Valve stock diameter hydraulic roller applications.
- Type of Spring: Single Conical Ovate Wire
- Color Code: N/A
- Installed Height and Pressure: 1.420' @ 95 lbs./in.
- Open Height and Pressure: 0.895' @ 270 lbs./in.
- Spring Rate: 330 lbs./in.
- O.D. of Outer Spring: 1.016' Top / 1.126' Bottom
- I.D. of Outer Spring: 0.640' Top / 0.750' Bottom
- I.D. of Middle Spring: N/A
- I.D. of Inner Spring: N/A
- Coil Bind height: 0.860'
- Weight: 45 grams
- Damper Included: No
Click Here to see 660-221434 Valve Spring Load Chart
Part TypeValve Spring
BrandMANLEY
Part CategoryPerformance Parts
Installed Height (In)1.420 in.
Open Height (In)0.895 in.
QuantitySold individually
Seat Pressure At Installed Height (Lbs)95 lbs.
Part FitmentSemi Universal
Spring Rate (Lbs/In)330 lbs./in.
Coil Bind Height (In)0.860 in.
Valve Spring StyleConical ovate wire
Open Pressure (Lbs)270 lbs
Vendor Part Number221434-1
Package Qty1
Package TypeEA
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