Cylinder Head, Valve Guides and Valve Seats

Cylinder Head Warpage Limit 0.004
Cylinder Head Overall Thickness [01]
Valve Guides (Standard)
Inside Diameter 0.2350-0.2360
Stem-to-Guide Clearance
Intake 0.0018-0.0025
Exhaust 0.0029-0.0037
Valve Seats
Angle 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.