Bolt Torque Spec Chart for Ford
These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use after-market performance bolts like ARP's, you should follow the recommended torque specifications.
260, 289, 302 351W Fastener Type Torque Spec Fastener Type Torque Spec Main cap bolts 60-70 ft-lbs Main cap bolts 95-105 ft-lbs Outer main cap bolts 35-40 ft-lbs. Connecting rod bolts 40-45 ft-lbs. Connecting rod bolts (40-45 ft-lbs. for 289 HP & Boss 302) Cylinder head bolts 90-100 ft-lbs. Cylinder head bolts 65-72 ft-lbs. Rocker arms 17-23 ft-lbs. Rocker arms 17-23 ft-lbs. Intake manifold bolts 23-25 ft-lbs. Intake manifold bolts 23-25 ft-lbs Oil pump bolts 23-28 ft-lbs. Oil pump bolt 23-28 ft-lbs. Cam bolts 40-45 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Cam thrust plate bolts 8-10 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Harmonic damper bolts 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-15 ft-lbs. Front cover bolts 12-15 ft-lbs.
| 351C, 351M | 429-460 | |||
| Fastener Type | Torque Spec | Fastener Type | Torque Spec | |
| Main cap bolts | 95-105 ft-lbs. | Main cap bolts | 95-105 ft-lbs | |
| Connecting rod bolts | 40-45 ft-lbs. (45-50 ft-lbs. For Boss 351C) | Connecting rod bolts | 40-45 ft-lbs. | |
| Cylinder head bolts | 105 ft-lbs. (125 ft-lbs. For Boss 351C) | Cylinder head bolts | 140 ft-lbs. | |
| Rocker arms (non-adjustable) | Rocker arms (non-adjustable) | Rocker arms (non-adjustable) | 18-22 ft-lbs. | |
| 5/16in. intake manifold bolts | 21-25 ft-lbs. | Intake manifold bolts | 25-30 ft-lbs. | |
| 3/8in. intake manifold bolts | 28-23 ft-lbs | Oil pump bolt | 25 ft-lbs. | |
| Oil pump bolt | 25 ft-lbs. | Cam bolts | 40-45 ft-lbs. | |
| Cam bolts | 40-45 ft-lbs. | Harmonic damper bolt | 70-90 ft-lbs. | |
| Cam thrust plate bolts | 9-12 ft-lbs. | Flywheel / flex-plate bolts | 75-85 ft-lbs. | |
| Harmonic damper bolt | 70-90 ft-lbs. | Pressure plate bolts | 35 ft-lbs. | |
| Flywheel / flex-plate bolts | 75-85 ft-lbs. | Front cover bolts | 12-18 ft-lbs. | |
| Pressure plate bolts | 35 ft-lbs. | |||
| Front cover bolts | 12-18 ft-lbs. |
| 360, 390, 406, 427, 428FE | |
| Fastener Type | Torque Spec |
| Main cap bolts | 95-105 ft-lbs. |
| Crossbolts for 406-427 | 40 ft-lbs. |
| Connecting rod bolts | 40-45 ft-lbs. (53-58 ft-lbs. For 406 and 427) |
| Cylinder head bolts | 80-90 ft-lbs. (100-110 ft-lbs. For 1963-67 427) |
| Rocker arm shaft bolts | 40-45 ft-lbs. |
| Intake manifold bolts | 32-35 ft-lbs. |
| Oil pump bolt | 12-15 ft-lbs. |
| Cam bolts | 40-45 ft-lbs. |
| Harmonic damper bolt | 70-90 ft-lbs. |
| Flywheel / flex-plate bolts | 75-85 ft-lbs. |
| Pressure plate bolts | 35 ft-lbs. |
| Front cover bolts | 12-15 ft-lbs. |