Valve Seat: Specifications

Cylinder Head Warpage Limit 0.002 inches
Cylinder Head Minimum Thickness 5.232 inches
Valve Guides:
Standard Inside Diameter 0.260-0.261 inches
Stem To Guide Clearance:
Intake 0.0008-0.002 inches
Exhaust 0.002-0.003 inches

Valve Seats:
Seat Angle, Degrees 45
Seat Width:
Intake 0.049-0.061 inches
Exhaust 0.049-0.061 inches