Cylinder Head, Valve Guide and Valve Seats

Cylinder Head Warpage Limit 0.006 inches

Cylinder Head Height
Nominal 4.236 inches
Service Limit 4.228 inches

Valve Guides
Standard Inside Diameter 0.2760-0.2768 inches
Stem To Guide Clearance
Intake 0.0010-0.0024 inches
Exhaust 0.0012-0.0026 inches

Valve Seats
Seat Angle, Degrees 45
Seat Width
Intake 0.028 inches
Exhaust 0.028 inches