Cylinder Head
WARNING: This page is about a different car, the 2019 Ford F-350 Super Duty and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Specification |
|---|---|
| Combustion chamber volume | 4.47 -4.60 in3 (73.3 -75.3 cm3 ) |
| Roller follower ratio | - |
| Valve arrangement (front to rear) -- LH | E-I-E-I-E-I-E-I |
| Valve arrangement (front to rear) -- RH | E-I-E-I-E-I-E-I |
| Valve face runout -- intake | 0.0024 in (.06 mm) |
| Valve face runout -- exhaust | 0.0020 in (.05 mm) |
| Valve face angle | 45.5 deg. |
| Valve guide bore diameter | 0.314 -0.315 in (7.975 -8.005 mm) |
| Valve head diameter -- intake | 2.1063 in (53.5 mm) |
| Valve head diameter -- exhaust | 1.6535 in (42 mm) |
| Valve seat width -- intake | 0.055 -0.063 in (1.4 -1.6 mm) |
| Valve seat width -- exhaust | 0.063 -0.071 in (1.6 -1.8 mm) |
| Valve seat angle | 44.5 -45.5 deg. |
| Head gasket surface flatness | 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 |