Cylinder Head Specifications
WARNING: This page is about a different car, the 1996 Lexus SC 300 and 1995 Lexus SC 300. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD
| Application | Specification | |||
|---|---|---|---|---|
| Maximum Warpage | ||||
| Cylinder Block Surface | .0039" (.100 mm) | |||
| Manifold Surface | .0039" (.100 mm) | |||
| Valve Seats | ||||
| Intake | ||||
| Seat Angle | 45° | |||
| Seat Width | .039-.055" (1.00-1.40 mm) | |||
| Exhaust | ||||
| Seat Angle | 45° | |||
| Seat Width | .047-.063" (1.20-1.60 mm) | |||
| Valve Guides | ||||
| Intake Valve | ||||
| Valve Guide Cylinder Head Bore I.D. | ||||
| Standard ValveGuide | .4325-.4333" (10.985-11.006 mm) | |||
| Oversize ValveGuide | .4344-.4353" (11.035-11.056 mm) | |||
| Valve Guide I.D. | .2366-.2374" (6.010-6.030 mm) | |||
| Valve Guide Installed Height | .484-.500" (12.30-12.70 mm) | |||
| Valve Stem-To-Guide Oil Clearance | ||||
| Standard | .0010-.0024" (.025-.060 mm) | |||
| Wear Limit | .0031" (.080 mm) | |||
| Exhaust Valve | ||||
| Valve Guide Cylinder Head Bore I.D. | ||||
| Standard ValveGuide | .4325-.4333" (10.985-11.006 mm) | |||
| Oversize Valve Guide | .4344-.4353" (11.035-11.056 mm) | |||
| Valve Guide I.D. | .2366-.2374" (6.010-6.030 mm) | |||
| Valve Guide Installed Height | .449-.465" (11.40-11.80 mm) | |||
| Valve Stem-To-Guide Oil Clearance | ||||
| Standard | .0012-.0026" (.030-.065 mm) | |||
| Wear Limit | .0039" (.100 mm) | |||