Crower 4.6L/5.4L 4V Modular Valve Spring Kit with Titanium Retainers
Engineered Component Kit:
Spring pressure:
Seat: 1.420" @100 lbs
Nose: 0.910" @ 244 lbs
Coil bind: 0.850"
(No machine work required).
| Model | Year(s) |
|---|---|
| SVT Shelby GT500 | 2007 2008 2009 2010 2011 2012 |
| SVT Cobra | 1996 1997 1998 1999 2000 2001 2003 2004 |
| Mach-1 | 2003 2004 |