| 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, in Canada VC-7-C) or equivalent (1) | WSS-M97B51-A1 (yellow color) |
| Metal Surface Prep ZC-31 | |
| Silicone Gasket and Sealant F7AZ-19554-EA or equivalent | WSE-M4G323-A4 |
| Silicone Gasket Remover ZC-30 | |
| Engine |
| 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 - 93°C (200°F)) | 275.8-417.1 kPa (40-75 psi) |
| Oil capacity (includes filter change) | 5.7 L (6.0 qts) |
| 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 (2) |
| 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 (0.00023 in) |
| Cylinder bore maximum out-of-round | 0.020 mm (0.00079 in) |
| Main bearing bore inside diameter | 72.402-72.422 mm (2.850-2.851 in) |
| Cylinder bore diameter-surface finish (RMS) | 0.2-0.6 microns |
| Crankshaft |
| Main bearing journal diameter | 67.483-67.503 mm (2.65 in) |
| Main bearing journal maximum taper | 0.004 mm (0.0002 in) |
| Main bearing journal maximum out -of-round | 0.06 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 | 52.983-53.003 mm (2.0859-2.0867 in) |
| Connecting rod journal maximum taper | 0.004 mm (0.0002 in) |
| Connecting rod journal maximum out-of -round | 0.006 mm (0.0002 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 (0.0005-0.0001 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 (0.002-0.610 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 per 25 mm (0.0015-0.984 in) |
| Connecting rod maximum allowed twist (3) | 0.050 mm per 25 mm (0.0015-0.984 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 (0.002 in) max. |
| 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. |
| (2) Time required for the plunger to leak down 1.6 mm of travel with 222 N force and leak-down fluid in the lash adjuster. |
| (3) The pin bore and crank bearing bore must be parallel and in the same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 105.5 mm on each side of rod centerline. |
