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General Specifications

WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL SPECIFICATIONS

Item Specification
Engine - 4.0L SOHC 
Displacement 4.0L (244 cu in)
Number of cylinders 6
Bore 100.4 mm (3.953 in)
Stroke 84.4 mm (3.32 in)
Firing order 1-4-2-5-3-6
Minimum oil pressure at 2,000 RPM (engine at normal operating temperature) 103 kPa (15 psi)
Engine weight (without accessory drive components or flexplate or flywheel) 189 Kg (417 lb)
Cylinder Head and Valve Train 
Cylinder head gasket surface flatness 0.08 mm (0.003 in) total
Combustion chamber volume 65.197 cc ± 2.068-2.018 cc
Valve arrangement (front to rear) LH=I-E-I-E-I-E
RH=E-I-E-I-E-I
Valve guide bore diameter 7.00-7.018 mm (0.2756-0.2762 in)
Valve stem diameter intake 6.965-6.98 mm (0.274-0.275 in)
Valve stem diameter exhaust 6.95-6.965 mm (0.274 in)
Valve stem-to-guide clearance exhaust 0.035-0.068 mm (0.001-0.003 in)
Valve stem-to-guide clearance intake 0.020-0.053 mm (0.001-0.002 in)
Valve head diameter intake 45.9-46.1 mm (1.807-1.815 in)
Valve head diameter exhaust 38.9-39.1 mm (1.531-1.539 in)
Valve face runout 0.03 mm (0.001 in)
Valve face angle 45 degrees
Valve seat width (exhaust and intake) 1.556-2.404 mm (0.06-0.094 in)
1.273-2.121 mm (0.05-0.083 in)
Valve seat runout (TIR maximum) 0.059 mm (0.002 in)
Valve seat angle 45 degrees
Valve spring free length intake 43.1 mm (1.7 in)
Valve spring free length exhaust 43.1 mm (1.7 in)
Valve spring squareness ± 1.5 deg
Valve spring compression pressure intake (at specified height) (lb) 275-305 N.m at 35.9-36.7 mm (202.84-224.968 lb-ft at 1.413-1.445 in)
Valve spring compression pressure exhaust (at specified height) (lb) 275-305 N.m at 35.9-36.7 mm (202.84-224.968 lb-ft at 1.413-1.445 in)
Valve spring installed height intake 39.86-40.86 mm (1.569-1.608 in)
Valve spring installed height exhaust 39.86-40.68 mm (1.569-1.608 in)
Valve spring installed pressure 320 newtons
Roller follower ratio 1.98:1
Camshaft 
Theoretical valve lift @ 0 lash 12 mm (0.47 in)
Lobe lift intake 6.584 mm (0.259 in)
Lobe lift exhaust 6.584 mm (0.259 in)
Allowable lobe lift loss 0.127 mm (0.005 in)
Journal diameter 27.935-27.96 mm (1.099-1.101 in)
Journal bore inside diameter 28.0-28.03 mm (1.102-1.104 in)
Journal to bearing clearancea 0.04-0.095 mm (0.002-0.004 in)
Runout 0.05 mm (0.002 in)
End play 0.075-0.185 mm (0.0003-0.007 in)
Cylinder Block 
Cylinder bore diameter 100.4 mm (3.953 in)
Cylinder bore maximum taper 0.025 mm (0.001 in)
Cylinder bore maximum out-of-round 0.025 mm (0.001 in)
Main bearing bore inside diameter 60.634-60.620 mm (2.387-2.387 in)
Head gasket surface flatness 0.1 mm (0.004 in) overall
Head gasket surface finish (RMS) 60-150
Crankshaft 
Main bearing journal diameter 56.980-57.0 mm (2.243-2.244 in)
Main bearing journal maximum taper 0.008 mm (0.0003 in)
Main bearing journal maximum out-of-round 0.008 mm (0.0003 in)
Main bearing journal-to-cylinder block clearance 0.008-0.062 mm (0.0003-0.0024 in)
Connecting rod journal diameter 53.98-54.0 mm (2.125-2.126 in)
Connecting rod journal maximum taper 0.008 mm (0.0003 in)
Connecting rod journal maximum out-of-round 0.008 mm (0.0003 in)
Crankshaft maximum end play 0.05-0.32 mm (0.002-0.0126 in)
Main Bearings 
Clearance to crankshaft 0.021-0.039 mm (0.0008-0.0015 in)
Clearance to crankshaft allowable 0.013-0.048 mm (0.0005-0.002 in)
Bearing wall thickness 1.8-1.806 mm (0.0709-0.0711 in)
Piston and Connecting Rod 
Piston diameter - coded STD 100.380-100.400 mm (3.952-3.9528 in)
Piston diameter - coded 0.5 100.880-100.900 mm (3.972 in)
Piston diameter - coded 1.0 101.350-101.370 mm (3.990-3.991 in)
Piston-to-cylinder bore clearance 0.030-0.060 mm (0.0012-0.0023 in)
Piston top ring end gap 0.200-0.450 mm (0.008-0.018 in)
Piston bottom ring end gap 0.450-0.700 mm (0.018-0.028 in)
Piston top ring groove width 1.64-1.66 mm (0.0645-0.0654 in)
Piston bottom ring groove width 1.79-1.81 mm (0.0705-0.0713 in)
Piston oil ring groove width 3.5-3.53 mm (0.1378-0.1399 in)
Piston top ring width 1.578-1.598 mm (0.062-0.063 in)
Piston bottom ring width 1.728-1.74 mm (0.068-0.069 in)
Piston top ring-to-groove clearance 0.050-0.082 mm (0.002-0.003 in)
Piston bottom ring-to-groove clearance 0.050-0.082 mm (0.002-0.003 in)
Piston pin bore diameter (red) 24.007-24.010 mm (0.9451-0.9452 in)
Piston pin bore diameter (blue) 24.010-24.013 mm (0.9452-0.9453 in)
Piston pin diameter (red) 23.994-23.997 mm (0.9446-0.9447 in)
Piston pin diameter (blue) 23.997-24.000 mm (0.9447-0.9449 in)
Piston pin length 72.0-72.8 mm (2.835-2.866 in)
Piston pin-to-piston pin fit 0.01-0.016 mm (0.0004-0.0006 in)
Piston pin-to-connecting rod clearance Press fit -0.018 to -0.042 mm (-0.0007 to -0.0017 in)
Connecting rod pin bore diameter 23.958-23.976 mm (0.943-0.944 in)
Connecting rod length 145.965-146.035 mm (5.746-5.749 in)
Connecting rod maximum allowed bend 0.0125 mm (0.00049 in) per 25.4 mm (1.000 in)
Connecting rod maximum allowed twist 0.038 mm (0.0015 in) per 25.4 mm (1.000 in)
Connecting rod bearing bore diameter 56.82-56.84 mm (2.2370-2.2378 in)
Connecting rod bearing-to-crankshaft clearance 0.022-0.064 mm (0.0008-0.0025 in)
Connecting rod side clearance (assembled to crankshaft) 0.092-0.268 mm (0.0036-0.0106 in)

a Tighten camshaft bearing cap bolts to 15 N.m (11 lb-ft) when measuring journal clearance.