Valve Seat Correction Angles
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1996 Ford Pickup, 1996 Ford Econoline, 1996 Ford Club Wagon, 1996 Ford Cab & Chassis, and 1995 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Grind valve seat to a true 45-degree angle. If seat width 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.