F 350 4WD Super Duty V8-6.0L DSL Turbo VIN P (2004)
Valve Spring: Specifications
Valve spring free length ................................................................................................................................................................. 51.96 mm (2.045 inch)
Valve spring solid height ................................................................................................................................................................... 36.1 mm (1.42 inch)
Valve spring compression pressure ............................................................................................ 46.30 mm @ 340 +/- 17 N (1.82 in 76.5 +/- 3.8 ft. lbs.)
Valve spring compression pressure ....................................................................................... 383 mm (15.07 inch) @ 858 43 N (1.51 in @ 191 9.7 lbs)