Valve Seat

Head Diameter
Intake 1.42 inch
Exhaust 1.10 inch
Valve Face Angle 45 degrees
Valve Seat Angle (In Head) 45.75 degrees
Valve Seat Width (In Head)
Intake 0.0165-0.0322 inch
Exhaust 0.0511-0.0668 inch
Seat Eccentricity Runout, Maximum (In Head) 0.002 inch
Valve Face Runout 0.0014 inch