Valve Spring Installed Height
CAUTION:
Install spacers only if necessary. Excessive use of spacers will overstress valve train.
- Using inside micrometer or dividers and a ruler, measure spring installed height from surface of cylinder head spring seat to underside of spring retainer. See Fig 1.
- If spring installed height is excessive, install .030" (.76 mm) spacer(s) between head and spring to bring spring installed height within limits.
VALVE SPRING INSTALLED HEIGHT SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| 5.0L | ||
| Intake | 1.672-1.703 (42.47-43.26) | |
| Exhaust | 1.578-1.609 (40.08-40.87) | |
| 5.8L | ||
| Intake | 1.672-1.703 (42.47-43.26) | |
| Exhaust | 1.578-1.609 (40.08-40.87) | |