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General Specifications

GENERAL SPECIFICATIONS

Item Specification
Lubricants and Sealants 
SAE 5W-30 Super Premium Motor Oil XO-5W30-QSP or equivalent WSS-M2C205-A
Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) or equivalenta(1) WSS-M97B51-A1 (yellow color)
Metal Surface Cleaner F4AZ-19A536-RA or equivalent WSE-M5B392-A
Silicone Gasket and Sealant F7AZ-19554-EA or equivalent WSE-M4G323-A4
Motorcraft Silicone Brake Caliper Grease and Dielectric Compound XG-3 or equivalent ESE-M1C171-A
Engine 
Displacement 4.0L (244 CID)
Number of cylinders 6
Bore 100.4 mm (3.953 in)
Stroke 84.4 mm (3.31 in)
Firing order 1-4-2-5-3-6
Oil pressure minimum at 2,000 rpm (engine at normal operating temperature) 103 kPa (15 psi)
Oil capacity 4.73 liters (5 quarts) with filter
Cylinder Head and Valve Train 
Cylinder head gasket surface flatness 0.08 mm (0.003 in) total
Combustion chamber volume 65.197 +/- 2.068-2.018 cc
Valve arrangement (front to rear) - LH I-E-I-E-I-E
Valve arrangement (front to rear) - RH E-I-E-I-E-I
Valve guide bore diameter 7.00-7.018 mm (0.276 in)
Valve stem diameter - intake 6.965-6.98 mm (0.274-0.275 in)
Valve stem diameter - exhaust 6.95-6.965 mm (0.27-0.274 in)
Valve stem-to-guide clearance - intake 0.020-0.053 mm (0.001-0.002 in)
Valve stem-to-guide clearance - exhaust 0.035-0.068 mm (0.001-0.003 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 - intake 1.273-2.121 mm (0.05-0.083 in)
Valve seat width - exhaust 1.556-2.404 mm (0.06-0.094 in)
Valve seat runout 0.059 mm (0.002 in)
Valve seat angle 45 degrees
Valve spring free length 43.1 mm (1.7 in)
Valve spring squareness +/- 1.5 deg
Valve spring compression pressure at specified height (lbs) 275-305 Nm at 35.9-36.7 mm (202.84-224.968 lb-ft at 1.413-1.445 in)
Valve spring installed height 39.86-40.86 mm (1.569-1.601 in)
Valve spring installed pressure 320 newtons
Roller follower ratio 1.98:1
Camshaft 
Theoretical valve lift @ 0 lash 12 mm
Lobe lift 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)
Camshaft journal bore inside diameter 28.0-28.03 mm (1.102-1.104 in)
Camshaft journal-to-bearing clearance 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 60.620-60.634 mm (2.387-2.387 in)
Head gasket surface flatness 0.1 mm (0.004 in) overall
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 standard 100.380-100.400 mm (3.952-3.9528 in)
Piston diameter - coded 0.5 100.880-100.900 mm (3.971-3.972 in)
Piston diameter - coded 1.0 101.350-101.370 mm (3.990-3.991 in)
Piston-to-cylinder bore clearance 0.030-0.050 mm (0.0012-0.002 in)
Piston ring end gap - top 0.200-0.450 mm (0.008-0.018 in)
Piston ring end gap - bottom 0.40-0.60 mm (0.015-0.024 in)
Piston ring groove width - top 1.23-1.25 mm (0.0484-0.0492 in)
Piston ring groove width - bottom 1.52-1.54 mm (0.0598-0.0606 in)
Piston ring groove width - oil ring 3.01-3.03 mm (0.1185-0.1193 in)
Piston ring width - top 1.175-1.190 mm (0.0463-0.0469 in)
Piston ring width - bottom 1.475-1.490 mm (0.0581-0.0587 in)
Piston ring-to-groove clearance - top 0.040-0.075 mm (0.0016-0.0030 in)
Piston ring-to-groove clearance - bottom 0.030-0.065 mm (0.0012-0.0026 in)
Piston pin bore diameter 23.958-23.976 mm (0.943-0.944 in)
Piston pin diameter (red) 23.994-23.997 mm (0.0002-0.0003 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 fit 0.01-0.016 mm (0.0004-0.0006 in)
Piston pin-to-connecting rod clearance 0.01-0.016 mm (0.0004-0.0006 in)
Connecting rod pin bore diameter 23.958-23.976 mm (0.943-0.944 in)
Connecting rod length (center-to-center) 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 mm - 56.84 mm (2.237 in - 2.238 in)
Connecting rod bearing-to-crankshaft clearance 0.008-0.061 mm (0.0003-0.0024 in)
Connecting rod side clearance 0.092-0.268 mm (0.0036-0.0106 in)
Accessory Drive Belt 
Drive belt 6 ribs
(1) The addition of Motorcraft Cooling System Stop Leak Pellets, VC-6, darkens Motorcraft Premium Gold Engine Coolant from yellow to golden tan.