Cylinder Head, Valve Guides and Valve Seats

Cylinder Head Warpage Limit 0.004
Cylinder Head Overall Thickness [01]
Valve Guides (Standard)
Inside Diameter 0.2352-0.2362
Stem-to-Guide Clearance
Intake 0.0019-0.0026
Exhaust 0.0029-0.0037
Valve Seats
Angle 44.50-45.00°
Width 0.035-0.051
Runout 0.002


All measurements given in inches, unless otherwise specified.

[01] Minimum thickness is overall thickness, less warpage limit, combined with amount of grinding of cylinder block gasket surface.