| Lubricants and Sealants |
| SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP or equivalent |
WSS-M2C153-H |
| Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) or equivalent |
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-A6 |
| Engine |
| Displacement |
4.6L (281 CID) |
| Number of cylinders |
8 |
| Bore |
90.2 mm |
| Stroke |
90.0 mm |
| Firing order |
1-3-7-2-6-5-4-8 |
| Oil pressure (hot @ 1,500 psi) |
138-310 kPa (20-45 psi) |
| Oil capacity |
6.1 L (6.4 qts) |
| Compression ratio |
9.3:1 |
| Cylinder Head and Valve Train |
| Cylinder head gasket surface flatness |
0.05 mm (0.002 in) in any 150 mm x 150 mm (6.0 in x 6.0 in) area |
| Combustion chamber volume (Cylinder head only) |
43.95 +/- 1.5 cc |
| Valve arrangement (front to rear) - LH |
E-I-E-I-E-I-E-I |
| Valve arrangement (front to rear) - RH |
I-E-I-E-I-E-I-E |
| Valve guide bore diameter |
7.044-7.015 mm (0.2773-0.2761 in) |
| Valve stem diameter - intake |
6.995-6.965 mm (0.275-0.2742 in) |
| Valve stem diameter - exhaust |
6.970-6.940 mm (0.274-0.2732 in) |
| Valve stem-to-guide clearance |
0.020-0.079 mm (0.0008-0.0031 in) |
| Valve head diameter - intake |
44.5 mm (1.75 in) |
| Valve head diameter - exhaust |
36.0 mm (1.41 in) |
| Valve face runout |
0.05 mm (0.002 in) |
| Valve face angle |
45.25-45.75 degrees |
| Valve seat width |
1.9-2.1 mm (0.0748-0.0827 in) |
| Valve seat runout (T.I.R.) max. |
0.025 mm (0.001 in) |
| Valve seat angle |
44.51-45.01 degrees |
| Valve spring free length |
53.37 mm (2.10 in) +/- 1.0 mm (0.039 in) |
| Valve spring squareness |
2 degrees |
| Valve spring compression pressure |
720.0-800.0 N @ 28.80 mm |
| Valve spring installed height |
39.7-40.3 mm (1.5630-1.5866 in) |
| Valve spring installed pressure |
283.0-321.0 N @ 42.56 mm |
| Rocker arm ratio |
1.80:1 |
| Hydraulic Lash Adjuster |
| Diameter |
16.000-15.988 mm (0.66-0.629 in) |
| Clearance-to-bore |
0.018-0.069 mm (0.0007-0.0027 in) |
| Service limit |
0.016 mm (0.0006 in) |
| Hydraulic leakdown rate |
5-25 seconds |
| Collapsed lash adjuster gap |
0.085-0.45 mm (0.0335-0.0177 in) |
| Camshaft |
| Theoretical valve lift @ 0 lash - intake |
13.006 mm (0.512 in) |
| Theoretical valve lift @ 0 lash - exhaust |
13.753 mm (0.541 in) |
| Lobe lift - intake |
7.11038 mm (0.2799 in) |
| Lobe lift - exhaust |
7.49744 mm (0.2951 in) |
| Allowable lobe lift loss |
0.0 mm (0.000 in) |
| Journal diameter |
26.962-26.936 mm (1.061-1.060 in) |
| Camshaft journal bore inside diameter |
27.012-26.987 mm (1.063-1.0625 in) |
| Camshaft journal-to-bearing clearance |
0.025-0.076 mm (0.00098-0.003 in) |
| Runout |
0.05 mm (0.002 in) |
| End play |
0.09-0.19 mm (0.0035-0.0075 in) |
| Cylinder Block |
| Cylinder bore diameter - grade 1 |
90.200-90.213 mm (3.5512-3.5517 in) |
| Cylinder bore diameter - grade 2 |
90.213-90.226 mm (3.5517-3.5522 in) |
| Cylinder bore diameter - grade 3 |
90.226-90.239 mm (3.5522-3.5527 in) |
| Cylinder bore maximum taper |
0.006 mm (0.0002 in) |
| Cylinder bore maximum out-of-round |
0.020 mm (0.0008 in) |
| Main bearing bore inside diameter |
72.401-72.422 mm (2.85-2.851 in) |
| Head gasket surface flatness |
0.05 mm (0.0020 in) in any 150 mm x 150 mm (6.0 in x 6.0 in) area |
| Crankshaft |
| Main bearing journal diameter |
67.483-67.503 mm (2.65-2.657 in) |
| Main bearing journal maximum taper |
0.020 mm (0.0007 in) |
| Main bearing journal maximum out-of-round |
0.05 mm (0.002 in) |
| Main bearing journal-to-cylinder block clearance |
0.025-0.045 mm (0.0009-0.0018 in) |
| Connecting rod journal diameter |
52.983-53.003 mm (2.0819-2.0867 in) |
| Connecting rod journal maximum taper |
0.015 mm (0.0005 in) |
| Connecting rod journal maximum out-of-round |
0.05 mm (0.0020 in) |
| Crankshaft maximum end play |
0.130-0.301 mm (0.0051-0.0118 in) |
| Diameter-surface finish (RMS) |
0.2-0.6 Microns |
| Diameter-out-of-round limit mm (inch) |
0.015 (0.0006) |
| Diameter-out-of-round service limit mm (inch) |
0.020(0.00079) |
| Diameter-taper service limit mm (inch) |
0.006 (0.00023) |
| Piston and Connecting Rod |
| Piston diameter - coded red 1 |
90.177-90.197 mm (3.550-3.551 in) |
| Piston diameter - coded blue 2 |
90.190-90.210 mm (3.5507-3.5515 in) |
| Piston diameter - coded yellow 3 |
90.203-90.223 mm (3.513-3.5521 in) |
| Piston-to-cylinder bore clearance |
0.012-0.026 mm (0.0005-0.001 in) |
| Piston ring end gap - top and bottom |
0.23-0.49 mm (0.01-0.02 in) |
| Piston ring end gap - oil ring (steel rail) |
0.05-0.66 mm (0.006-0.026 in) |
| Piston ring groove width - compression (top) |
1.520-1.550 (0.06-0.610 in) |
| Piston ring groove width - compression (bottom) |
1.520-1.530 mm (0.060-0.0602 in) |
| Piston ring groove width - oil ring |
6.996-7.224 mm (0.275-0.2844 in) |
| Piston ring width - compression |
1.49-1.47 mm (0.0587-0.0579 in) |
| Piston ring width - oil ring rail (2) |
0.473-0.447 mm (0.0186-0.0176 in), 0.483 mm (0.0190 in) max. at ID |
| Piston ring width - oil ring expander |
2.038-1.960 mm (0.080-0.077 in) |
| Piston ring-to-groove clearance - compression |
0.030-0.070 mm (0.0012-0.0028 in) |
| Piston ring-to-groove clearance - oil ring assembly |
0.046-0.196 mm (0.0018-0.0077 in) |
| Piston pin bore diameter |
22.0125-22.0125 mm (0.8666-0.8668 in) |
| Piston pin diameter |
22.001-22.003 mm (0.8662-0.8663 in) |
| Piston pin length |
62.030 mm (2.44 in) |
| Piston pin-to-piston fit |
0.009-0.0165 mm (0.0003-0.0006 in) |
| Connecting rod-to-pin clearance |
0.009-0.023 mm (0.0003-0.0009 in) |
| Connecting rod pin bore diameter |
22.012-22.024 mm (0.866-0.867 in) |
| Connecting rod length (center-to-center) |
150.7 mm (5.93 in) |
| Connecting rod maximum allowed bend |
0.038 mm per 25 mm (0.0015-0.984 in) |
| Connecting rod maximum allowed twist |
0.050 mm per 25 mm (0.00197 per 0.9843 in) |
| Connecting rod bearing bore diameter |
56.866-56.886 mm (2.238-2.239 in) |
| Connecting rod bearing-to-crankshaft clearance |
0.027-0.069 mm (0.001-0.0027 in) |
| Connecting rod side clearance - assembled to crank (standard) |
0.15-0.45 mm (0.0059-0.0177 in) |
| Accessory Drive Belt |
| Drive belt |
6 ribs |