General Specifications
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| General Specifications - Engine | |
| Displacement | 6.4L (390 cu in) |
| Number of cylinders | 8 |
| Bore | 98.2 mm (3.87 in) |
| Stroke | 105 mm (4.134 in) |
| Firing order | 1-2-7-3-4-5-6-8 |
| Oil pressure - minimum | 82.7 kPa (12 psi) at 700 RPM, 165.5 kPa (24 psi) at 1,200 RPM and 310.3 kPa (45 psi) at 1,800 RPM with engine at operating temperature |
| Oil capacity | 14.1L (15 qt) with filter |
| Compression ratio | 17.2:1 |
| Engine weight (automatic transmission) (without accessory drive components) | 513.5 kg (1,132 lb) |
| Engine weight (manual transmission) (without accessory drive components) | 528.0 kg (1,164 lb) |
| Cylinder head and valve train | |
| Cylinder head gasket surface flatnessa | 0.0508 mm (0.002 in) |
| Cylinder head thickness - minimum | 95 mm (3.74 in) |
| Combustion chamber volume | - |
| Valve arrangement (front to rear) | - |
| Valve guide bore diameter | 7.003-7.029 mm (0.276-0.277 in) |
| Valve stem diameter | 6.947-6.965 mm (0.2735-0.2742 in) |
| Valve stem-to-guide clearance | 0.102 mm (0.004 in) max |
| Valve head diameter - intake | 34.0 mm (1.33 in) |
| Valve head diameter - exhaust | 29.5 mm (1.161 in) |
| Valve face runout (TIR max) | 0.038 mm (0.0015 in) |
| Valve face angle | Exhaust - 39.5 degrees |
| Valve face angle | Intake - 37.0 degrees |
| Valve seat width | Intake - 1.80-2.56 mm (0.071-0.101 in) |
| Valve seat width | Exhaust - 1.48-2.24 mm (0.058-0.088 in) |
| Valve seat runout | 0.035 mm (0.0014 in) |
| Valve seat angle | Exhaust - 40 degrees |
| Valve seat angle | Intake - 37.5 degrees |
| Valve spring free length | 51.96 mm (2.045 in) |
| Valve spring solid height | 36.1 mm (1.42 in) |
| Valve spring compression pressure - installed | 46.5 mm (1.83 in) @ 340 ± 17 N (76.4 ±3.8 lbf) |
| Valve spring compression pressure - valve open | 38.3 mm (1.5 in) @ 850 ± 43 N (191.1 ± 9.71 lbf) |
| Valve spring installed height | - |
| Valve spring installed pressure | - |
| Roller follower ratio | 1.40 |
| Hydraulic lash adjuster | |
| Diameter | 23.401 mm (0.92 in) |
| Clearance to bore | 0.029 mm (0.0011 in) |
| Service limit | - |
| Hydraulic leakdown rate | 18-90 seconds for 3.2 mm (0.12 in) - travel using 222 N (49.9 lbf) |
| Collapsed lash adjuster gap | - |
| Camshaft | |
| Gear backlash | 0.17-0.30 mm (0.006-0.011 in) |
| Lobe lift | Intake - 5.82 mm (0.229 in) |
| Lobe lift | Exhaust - 5.91 mm (0.2326 in) |
| Allowable lobe lift loss | 0.051 mm (0.002 in) |
| Journal diameter | 61.987-62.013 mm (2.440-2.441 in) |
| Camshaft journal bearing inside diameter | 62.05-62.14 mm (2.443-2.446 in) |
| Camshaft journal-to-bearing clearance | 0.037-0.153 mm (0.0015-0.0060 in) |
| Runout | 0.051 mm (0.002 in) |
| End play | 0.051-0.211 mm (0.002-0.008 in) |
| Cylinder block | |
| Cylinder bore diameter | 98.191 - 98.209 mm (3.866-3.867 in) |
| Cylinder bore maximum taper | 0.076 mm (0.003 in) |
| Cylinder bore maximum out-of-round | 0.05 mm (0.002 in) |
| Main bearing bore inside diameter | 85.99-86.01 mm (3.3854-3.3862 in) |
| Camshaft bearing bore inside diameter | 65.98-66.02 mm (2.5976-2.5992 in) |
| Head gasket surface flatness | 0.13 mm (0.005 in) across the total area 0.030 mm (0.0011 in) around fire rings and oil drain holes at 25 mm (0.98 in) length 0.35 mm (0.0014 in) around water jacket holes at 25 mm (0.98 in) length 0.060 mm (0.0024 in) around push rod opening at 25 mm (0.98 in) length |
| Crankshaft | |
| Main bearing journal diameter - Standard size | 80.9873-81.0127 mm (3.188-3.189 in) |
| Main bearing journal diameter - 0.254 mm (0.010 in) undersize | 80.7333-80.7587 mm (3.178-3.179 in) |
| Main bearing journal diameter - 0.508 mm (0.020 in) undersize | 80.4793-80.5047 mm (3.168-3.169 in) |
| Main bearing journal diameter - 0.762 mm (0.030 in) undersize | 80.2253-80.2507 mm (3.158-3.159 in) |
| Main bearing journal maximum taper | 0.009 mm (0.0003 in) |
| Main bearing journal maximum out-of-round | 0.006 mm (0.0002 in) |
| Main bearing journal-to-cylinder block clearance | 0.014-0.090 mm (0.0006-0.0035 in) |
| Connecting rod journal diameter | |
| Standard size | 71.9873 to 72.0127 mm (2.834 to 2.835 in) |
| 0.253 mm (0.010 in) undersize | 71.7333 to 71.7587 mm (2.824 to 2.825 in) |
| 0.508 mm (0.020 in) undersize | 71.4793 to 71.5047 mm (2.814 to 2.815 in) |
| 0.762 mm (0.030 in) undersize | 71.2253 to 71.2507 mm (2.804 to 2.805 in) |
| Connecting rod journal maximum taper | 0.017 mm (0.007 in) |
| Connecting rod journal maximum out-of-round | 0.006 mm (0.0002 in) |
| Crankshaft maximum end play | 0.508 mm (0.020 in) |
| Piston and connecting rod | |
| Piston diameter - standard size | 98.114-98.146 mm (3.8630-3.8640 in) |
| Piston diameter - 0.254 mm (0.010 in) oversize | 98.368-98.400 mm (3.8730-3.8740 in) |
| Piston diameter - 0.508 mm (0.020 in) oversize | 98.622-98.654 mm (3.8830-3.8840 in) |
| Piston diameter - 0.762 mm (0.030 in) oversize | 98.876-98.908 mm (3.8930-3.8940 in) |
| Piston-to-cylinder bore clearance | 0.045-0.095 mm (0.0018-0.0037 in) |
| Piston ring end gap - top compression | 0.29-0.79 mm (0.011-0.031 in) |
| Piston ring end gap - intermediate compression | 1.42-1.930 mm (0.056-0.076 in) |
| Piston ring end gap - oil control | 0.24-0.737 mm (0.009-0.029 in) |
| Piston ring groove width (measured over 2.10 mm (0.082 in) gauge pins) | Upper limit - 96.606 mm (3.8034 in) |
| Piston ring groove width (measured over 2.10 mm (0.082 in) gauge pins) | Replacement limit - 96.406 mm (3.7955 in) |
| Piston ring width | 1.990-1.969 mm (0.078-0.077 in) |
| Piston ring-to-groove clearance - intermediate | 0.050-0.096 mm (0.0020-0.0038 in) |
| Piston ring-to-groove clearance - oil control ring | 0.040-0.095 mm (0.0015-0.0037 in) |
| Piston pin bore diameter | 38.511-38.512 mm (1.5162-1.5165 in) |
| Piston pin diameter | 38.491-38.501 mm (1.5154-1.5158 in) |
| Piston pin length | 74.6-75 mm (2.937-2.953 in) |
| Piston pin-to-piston fit | 0.011-0.027 mm (0.0004-0.0011 in) |
| Connecting rod-to-pin clearance | 0.058-0.041 mm (0.0023-0.0016 in) |
| Connecting rod pin bore diameter | 38.542-38.550 mm (1.517-1.577 in) |
| Connecting rod length (center-to-center) | 176 mm (6.929 in) |
| Connecting rod maximum allowed bend | 0.025 mm (0.001 in) |
| Connecting rod maximum allowed twist | 0.05 mm (0.002 in) |
| Connecting rod bearing bore diameter | 75.987-76.013 mm (2.9916-2.9926 in) |
| Connecting rod bearing-to-crankshaft clearance | 0.0152-0.089 mm (0.0006-0.0035 in) |
| Connecting rod side clearance | 0.230-1.067 mm (0.009-0.042 in) |
| Exhaust manifold warpage - maximum allowable clearance (cold) | 0.075 mm (0.030 in) |
| Intake manifold warpage - between ports | 0.10 mm (0.004 in) |
| Intake manifold warpage - total | 0.60 mm (0.024 in) |
| Oil pump end clearance (inner and outer rotor to housing) | 0.060-0.105 mm (0.002-0.004 in) |
| Oil pump radial clearance (peak to peak) | 0.50-0.180 mm (0.002-0.007 in) |
| Vibration damper face runout (max) | 0.635 mm (0.025 in) |
| Vibration damper rubber bulging (max) | 1.5 mm (0.059 in) |
| Push rod runout (max) | 0.50 mm (0.02 in) |
| Piston height above crankcase deck (protrusion) | 0.6096-0.8636 mm (0.024-0.034 in) |
| Oil pump flow rate | 13 GPM @ 3,000 RPM |
| Camshaft position (CMP) sensor and crankshaft position (CKP) sensor air gap - Minimum | 0.25 mm (0.01 in) |
| CMP sensor and CKP sensor air gap - Nominal | 0.89 mm (0.035 in) |
| CMP sensor and CKP sensor air gap - Maximum | 1.53 mm (0.060 in) |
| Trigger wheel runout (max) | 0.35 mm (0.0137 in) |
| Fuel injection pump drive gear backlash | 0.13-0.33 mm (0.005-0.013 in) |
| Maximum wear step at ring turn around (ring ridge) | 0.152 mm (0.005 in) |
a Refer to Cylinder Head Distortion .