Cylinder Head Specifications
CYLINDER HEAD
| Application | Specification | |||
|---|---|---|---|---|
| Maximum Warpage | ||||
| Cylinder Block Surface | .002" (.05 mm) | |||
| Manifold Surfaces | .004" (.10 mm) | |||
| Valve Seats | ||||
| Contact Surface Refinishing Angles | ||||
| Above Seat Contact Surface | 15° | |||
| Seat Contact Surface | 45° | |||
| Below Seat Contact Surface (Exhaust Only) | 60° | |||
| Valve Seat Contact Width | .0433-.0512" (1.10-1.13 mm) | |||
| Valve Guides | ||||
| Valve Guide I.D. | .2362-.2366" (6.000-6.012 mm) | |||
| Valve Guide Installed Height | .0012" (13.5 mm) | |||
| Valve Stem-To-Guide Oil Clearance | ||||
| Intake Valves | ||||
| Standard | .0008-.0018" (.020-.047 mm) | |||
| Maximum | .0027" (.070 mm) | |||
| Exhaust Valves | ||||
| Standard | .0018-.0028" (.045-.072 mm) | |||
| Maximum | .0035" (.090 mm) | |||
| Hydraulic Valve Lash (HVL) Adjuster Bore | 1.2205-1.2214" (31.000-31.025 mm) | |||