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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (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 variant/trim than selected.
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)