Valve Seat Correction Angles
WARNING: This page is about a different car, the 1997 Ford Ranger, 1997 Ford Explorer, 1996 Ford Ranger, and 1996 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Grind valve seat to 45-degree angle. If seat is too wide after grinding, use a 30-degree stone to lower seat or a 60-degree stone to raise seat. See CYLINDER HEAD table under ENGINE SPECIFICATIONS.