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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (Engine - 4.0L V6 - VIN [X]) >> Engine Specifications >> Engine Valves & Valve Springs Specifications

Engine Valves & Valve Springs Specifications

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.
VALVES & VALVE SPRINGS

Application Specification
Face Angle 44°
Face Runout .002" (.051 mm)
Head Diameter
Intake 1.71" (43.5 mm)
Exhaust 1.36" (34.5 mm)
Stem Diameter
Intake .3159-.3167" (8.024-8.044 mm)
Exhaust .3149-.3156" (8.998-8.016 mm)
Valve Margin .031" (.79 mm)
Valve Springs
Free Length 1.91" (48.5 mm)
Installed Height 1.58-1.61" (40.1-40.9 mm)
Out-Of-Square .078" (1.98 mm)
Lbs. @ In. (kg @ mm) 
Pressure
Closed 60-68 @ 1.59 (27-31 @ 37.8)
Open 138-149 @ 1.22 (63-68 @ 31.0)