FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Valves

Stem Diameter
Intake 0.260
Exhaust 0.260
Face Angle 45.0-45.5°
Margin (Minimum)
Intake 0.019
Exhaust 0.039

All measurements given in inches, unless otherwise specified.