Cylinder Head Specifications
CYLINDER HEAD SPECIFICATIONS
| Application | In. (mm) | |||
|---|---|---|---|---|
| Maximum Warpage Per 6" | .002 (.03) | |||
| Valve Seats | ||||
| Intake Valve | ||||
| 4.0L | ||||
| Seat Angle | 44.5° | |||
| Seat Width | .040-.060 (1.02-1.52) | |||
| Maximum Seat Runty | .0025 (.064) | |||
| 4.2L | ||||
| Seat Angle | 30° | |||
| Seat Width | .040-.060 (1.02-1.52) | |||
| Maximum Seat Runty | .0025 (.064) | |||
| Exhaust Valve | ||||
| 4.0L | ||||
| Seat Angle | 44.5° | |||
| Seat Width | .040-.060 (1.02-1.52) | |||
| Maximum Seat Runout | .0025 (.064) | |||
| 4.2L | ||||
| Seat Angle | 44.5° | |||
| Seat Width | .040-.060 (1.02-1.52) | |||
| Maximum Seat Runout | .0025 (.064) | |||
| Valve Guides | ||||
| 4.0L | ||||
| Valve Guide I.D. | .312 (7.93) | |||
| Valve Stem-to-Guide | .001-.003 (.03-.08) | |||
| 4.2L | ||||
| Valve Guide I.D. | .3735-.3745 (9.487-9.512) | |||
| Valve Stem-to-Guide | .001-.003 (.03-.08) | |||