General Specifications
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| General Specifications - Engine | |
| Displacement | 6.7L (409 cu in) |
| Number of cylinders | 8 |
| Bore | 99 mm (3.897 in) |
| Stroke | 108 mm (4.251 in) |
| Firing order | 1-3-7-2-6-5-4-8 |
| Oil pressure - minimum | 68.9 kPa (10 psi) at 700 RPM, 137.8 kPa (20 psi) at 1, 200 RPM, 241.3 kPa (35 psi) at 1, 800 RPM with engine at operating temperature |
| Oil capacity | 12.3L (13 qt) with filter |
| Compression ratio | 16.2:1 |
| Engine weight (without accessory drive components) | 445 kg (981 lb) |
| Cylinder head and valve train | |
| Cylinder head gasket surface flatness - overall | 0.1 mm (0.004 in) |
| Valve arrangement (front to rear) | I-I-E-E-I-I-E-E-I-I-E-E-I-I-E-E |
| Valve guide bore diameter | 7.035-7055 mm (0.276-0.277 in) |
| Valve stem diameter - intake | 6.975-6.995 mm (0.274-0.275 in) |
| Valve stem diameter - exhaust | 6.97-6.99 mm (0.274-0.275 in) |
| Valve stem-to-guide clearance | 0.085 mm (0.003 in) |
| Valve head diameter - intake | 33.8 mm (1.33 in) |
| Valve head diameter - exhaust | 30.35 mm (1.194 in) |
| Valve face runout (TIR Max) | 0.03 mm (0.001 in) |
| Valve face angle - intake (relative to top of head) | 29.5 degrees +/- 0.25 degrees from stem axis |
| Valve face angle - exhaust (relative to top of head) | 44.5 degrees +/- 0.25 degrees from stem axis |
| Valve seat width - intake, maximum service limit | 2.5 mm (0.098 in) |
| Valve seat width - exhaust, maximum service limit | 3.0 mm (0.153 in) |
| Valve seat runout (TIR Max) | 0.055 mm (0.002 in) |
| Valve seat angle - intake (from deck face) | 30.25 degrees |
| Valve seat angle - exhaust (from deck face) | 45.25 degrees |
| Valve spring free length - reference | 49.7 mm (1.956 in) |
| Valve spring solid height - maximum | 23 mm (0.905 in) |
| Valve spring compression pressure - installed | 34.0 mm @ 390 ± 20 N (1.338 in @ 87.6 ± 4.4 lbf) |
| Valve spring compression pressure - valve open | 24.5 mm @ 650 ± 29 N (0.964 in @ 146.1 ± 6.5 lbf) |
| Valve spring installed height - reference | 34 mm (1.338 in) |
| Rocker arm ratio (all positions) | 1.5:1 |
| Valve margin - intake (minimum) | 0.9 mm (0.035 in) |
| Valve margin - exhaust (minimum) | 0.6 mm (0.023 in) |
| Hydraulic lash adjuster | |
| Diameter | 29.793-29.808 mm (1.172-1.173 in) |
| Clearance to bore | 0.019-0.072 mm (0.0007-0.002 in) |
| Collapsed lash adjuster gap - at valve tip | 0.7-3.0 mm (0.027-0.118 in) |
| Camshaft | |
| Gear backlash - camshaft gear to fuel injection pump | 0.020-0.190 mm (0.0007-0.007 in) |
| Gear backlash - camshaft gear to crankshaft gear | 0.023-0.154 mm (0.0009-0.006 in) |
| Lobe lift - intake | 5.69 mm (0.224 in) |
| Lobe lift - exhaust | 5.90 mm (0.232 in) |
| Allowable lobe lift loss | 0.05 mm (0.001 in) |
| Journal diameter | 59.970-59.998 mm (2.361-2.362 in) |
| Camshaft journal bearing inside diameter | 60.0375-60.0625 mm (2.363-2.364 in) |
| Camshaft journal-to-bearing clearance | 0.025-0.075 mm (0.0009-0.002 in) |
| Runout (TIR center journals relative to end journals, Max) | 0.06 mm (0.002 in) |
| End play | 0.07-0.17 mm (0.002-0.006 in) |
| Cylinder block | |
| Cylinder bore diameter | 99.000-99.018 mm (3.897-3.898 in) |
| Cylinder bore maximum taper | 0.05 mm (0.002 in) |
| Cylinder bore maximum out-of-round | 0.03 mm (0.001 in) |
| Main bearing bore inside diameter | 85.861-85.881 mm (3.380-3.381 in) |
| Camshaft bearing bore inside diameter | 63.850-63.875 mm (2.513-2.514 in) |
| Head gasket surface flatness (across cylinder bores) | 0.025 mm (0.001 in) in any 25 mm (1 in) x 25 mm (1 in) area; 0.05 mm (0.002 in) in any 150 mm (6 in) X 150 mm (6 in) area; 0.1 mm (0.004 in) overall |
| Head gasket surface flatness (across sealing rail on valley side around pushrods/lifters) | 0.025 mm (0.001 in) in any 25 mm (1 in) x 25 mm (1 in) area; 0.06 mm (0.002 in) in any 150 mm (6 in) X 150 mm (6 in) area; 0.13 mm (0.005 in) overall |
| Crankshaft | |
| Main bearing journal diameter - standard size | 80.983-81.003 mm (3.188-3.189 in) |
| Main bearing journal diameter - 0.25 mm (0.009 in) undersize | 80.733-80.753 mm (3.178-3.179 in) |
| Main bearing journal maximum taper | 0.008 mm (0.0003 in) |
| Main bearing journal maximum out-of-round | 0.005 mm (0.0002 in) |
| Main bearing assembly clearance | 0.023-0.081 mm (0.001-0.003 in) |
| Connecting rod journal diameter - standard size | 71.983 to 72.003 mm (2.833 to 2.834 in) |
| Connecting rod journal diameter - 0.25 mm (0.009 in) undersize | 71.733 to 71.753 mm (2.8241 to 2.8249 in) |
| Connecting rod journal maximum taper | 0.008 mm (0.0003 in) |
| Connecting rod journal maximum out-of-round | 0.005 mm (0.0002 in) |
| Crankshaft maximum end play | 0.31 mm (0.012 in) |
| Piston and connecting rod | |
| Piston diameter - standard size (major diameter) | 98.939-98.953 mm (3.8952-3.8957 in) |
| Piston diameter - 0.50 mm (0.019 in) oversize (major diameter) | 99.439-99.453 mm (3.914-3.915 in) |
| Piston diameter - 1.0 mm (0.039 in) oversize (major diameter) | 99.939-99.953 mm (3.934-3.935 in) |
| Piston-to-cylinder bore clearance | 0.047-0.079 mm (0.001-0.003 in) |
| Piston ring end gap - top compression | 0.25-0.040 mm (0.009-0.015 in) |
| Piston ring end gap - intermediate compression | 0.40-0.60 mm (0.015-0.023 in) |
| Piston ring end gap - oil control | 0.25-0.50 mm (0.009-0.019 in) |
| Top piston ring groove width (measured over 2.685 mm (0.105 in) gauge pins) - upper limit | 98.566-98.713 mm (3.880-3.886 in) |
| Piston ring-to-groove clearance - intermediate | 0.065 mm (0.002 in) |
| Piston ring-to-groove clearance - oil control ring | 0.030 mm (0.001 in) |
| Piston pin bore diameter | 34.013-34.018 mm (1.3390-1.3392 in) |
| Piston pin diameter | 33.994-34.000 mm (1.3383-1.3385 in) |
| Piston pin length | 76.7-77.0 mm (3.019-3.031 in) |
| Piston pin-to-piston fit | 0.013-0.024 mm (0.0005-0.0009 in) |
| Connecting rod-to-pin clearance | 0.012-0.030 mm (0.0004-0.0011 in) |
| Connecting rod pin bore diameter | 34.012-34.024 mm (1.3390-1.3395 in) |
| Connecting rod length (center-to-center) | 177 mm +/- 0.125 mm (6.968 in +/- 0.004 in) |
| Connecting rod maximum allowed bend | 0.015 mm (0.0006 in) |
| Connecting rod maximum allowed twist | 0.035 mm (0.001 in) |
| Connecting rod bearing bore diameter | 71.993 +/- 0.01 mm (2.834 +/- 0.0004 in) |
| Connecting rod bearing-to-crankshaft clearance | 0.044-0.105 mm (0.001-0.004 in) |
| Connecting rod side clearance | 0.125-0.475 mm (0.004-0.018 in) |
| Miscellaneous | |
| Exhaust manifold warpage - maximum allowable clearance (cold) | 0.08 mm (0.003 in) over any individual surface, 0.15 mm (0.005 in) over any 2 consecutive surfaces, 0.25 mm (0.009 in) over 4 surfaces |
| Upper intake manifold warpage - free state | 3 mm (0.118 in) |
| Upper intake manifold warpage - clamped | 0.5 mm (0.019 in) |
| Vibration damper face runout (Max) | 0.25 mm (0.009 in) |
| Vibration damper rubber bulging (Max) | 1.0 mm (0.039 in) |
| Push rod runout (Max) | 0.05 mm (0.001 in) |
| Piston height above crankcase deck (protrusion) | 0.4182 mm +/- 0.01 mm (0.016 in) |
| Crankshaft Position (CKP) sensor air gap - minimum | 0.2 mm (0.007 in) |
| CKP sensor air gap - nominal | 1.15 mm (0.045 in) |
| CKP sensor air gap - maximum | 2.1 mm (0.082 in) |
| Camshaft Position (CMP) sensor air gap - minimum | 0.4 mm (0.015 in) |
| CMP sensor air gap - nominal | 1.2 mm (0.047 in) |
| CMP sensor air gap - maximum | 2 mm (0.078 in) |
| Trigger wheel runout - maximum | 0.35 mm (0.013 in) |
| Fuel injection pump drive gear backlash | 0.020-0.190 mm (0.0007-0.007 in) |