Cylinder Head, Valve Guides and Valve Seats

Cylinder Head Warpage Limit 0.008
Cylinder Head Overall Thickness [01] 4.720-4.728
Valve Guides (Standard)
Stem-to-Guide Clearance
Intake 0.0008-0.0020
Exhaust 0.0012-0.0028
Valve Seats
Angle 43.50-44.00°
Width 0.035-0.051



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.