| Engine - 4.6L |
| Displacement |
4.6L (281 CID) |
| Number of cylinders |
8 |
| Bore |
90.2 mm (3.55 in) |
| Stroke |
90.0 mm (3.54 in) |
| Firing order |
1-3-7-2-6-5-4-8 |
| Oil pressure @ 2000 rpm - hot |
275.8-517.1 kPa (40-75 psi) |
| Oil capacity (includes filter change) |
5.7 L (6.0 qt) |
| Compression ratio |
9.3:1 |
| Cylinder Head and Valve Train |
| Combustion chamber volume |
51.5-52.5 cc (3.14-3.20 cu in) |
| 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 (0.2773-0.2762 in) |
| Valve stem diameter - intake |
6.995-6.975 mm (0.2754-0.2746 in) |
| Valve stem diameter - exhaust |
6.970-6.949 mm (0.2744-0.2736 in) |
| Valve stem-to-guide clearance - intake |
0.020-0.069 mm (0.0008-0.0027 in) |
| Valve stem-to-guide clearance - exhaust |
0.045-0.095 mm (0.0018-0.0037 in) |
| Valve head diameter - intake |
44.5 mm (1.751 in) |
| Valve head diameter - exhaust |
34.0 mm (1.338 in) |
| Valve face runout |
0.05 mm (0.0019 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 (0.0010 in) |
| Valve seat angle |
45.50 degrees |
| Valve spring free length |
49.55 mm (1.9508 in) |
| Valve spring squareness |
2 degrees |
| Valve spring compression pressure |
587.14 N @ 28.02 mm (131.994 lb @ 1.1032 in) |
| Valve spring installed height |
39.7 - 40.3 mm (1.5630 - 1.5866 in) |
| Valve spring installed pressure - valve open |
587.165 N @ 27.99 mm (132 lb @ 1.102 in) |
| Valve spring installed pressure - valve closed |
244.652 N @ 39.98 mm (55 lb @ 1.574 in) |
| Roller follower ratio |
1.75:1 |
| Hydraulic Lash Adjuster |
| Diameter |
16.000 - 15.9888 mm (0.6299 - 0.6295 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 - 0.450 mm (0.0033 - 0.0177 in) |
| Camshaft |
| Theoretical valve lift @ 0 lash |
12.0 mm (0.472 in) |
| Lobe lift |
6.5 mm (0.2560 in) |
| Allowable lobe lift loss |
0 |
| Journal diameter (all) |
26.962-26.936 mm (1.0615-1.0605 in) |
| Camshaft journal bore inside diameter (all) |
27.012-26.987 mm (1.0635-1.0625 in) |
| Camshaft journal-to-bearing clearance |
0.025-0.076 mm (0.0010-0.0030 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 (2.850 - 2.851 in) |
| Crankshaft |
| Main bearing journal diameter |
63.0 mm (2.4803 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 |
0.027 - 0.065 mm (0.0011 - 0.0026 in) |
| Connecting rod journal diameter |
52.988 - 53.003 mm (2.0861 - 2.0867 in) |
| Connecting rod journal maximum taper |
0.015 mm (0.0006 in) |
| Connecting rod journal maximum out-of-round |
0.05 mm (0.0020 in) |
| Crankshaft maximum end play |
0.130 - 0.301 mm (0.0051-0.012 in) |
| 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 - 0.0026 mm (0.0005 - 0.001 in) |
| Piston ring end gap - compression (top and bottom) |
0.23 - 0.49 mm (0.010 - 0.020 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 mm (0.060 - 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 |
22.0015 - 22.004 mm (0.866 - 0.8663 in) |
| Piston pin diameter |
22.0 mm (0.866 in) |
| Piston pin length |
61.8 mm (2.433 in) |
| Piston pin-to-piston fit |
0.005 - 0.010 mm (0.0002 - 0.0004 in) |
| Connecting rod-to-pin clearance |
0.015 - 0.040 mm (0.0006 - 0.0016 in) |
| Connecting rod pin bore diameter |
21.959 - 21.979 mm (0.864 - 0.865 in) |
| Connecting rod length (center-to-center) |
150.7 mm (5.93 in) |
| Connecting rod maximum allowed bend |
0.038 mm (0.0015 in) per 25 mm (0.984 in) |
| Connecting rod maximum allowed twist |
0.050 mm (0.0019 in) per 25 mm (0.984 in) |
| Connecting rod bearing bore diameter |
56.756 - 56.876 mm (2.234 - 2.24 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 |
0.015 - 0.45 mm (0.0006 - 0.0177 in) |
| Connecting rod side clearance (assembled to crank) - service limit |
0.05 mm (0.02 in) max. |