C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Valve Spring: Specifications
Valve Spring Pressure Closed .......................................................................................................... 316-351 N @46.685 mm (71-79 lbs. @ 1.838 inch)
Valve Spring Pressure Open ..................................................................................................... 1059-1165 N @ 34.213 mm (238-262 lbs @ 1.347 inch)
Valve Spring Installed Height ............................................................................................................................... 46.685-47.479 mm (1.838-1.869 inch)
Maximum Valve Spring Installed Height ...................................................................................................................................... 0.726 mm (0.030 inch)
Maximum Valve Spring Tension Shim .......................................................................................................................................... 0.726 mm (0.030 inch)
Maximum Combined Valve Spring Installed Height And Valve Spring Tension Shim ................................................................ 1.524 mm (0.060 inch)
