Ford Torque Spec

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 aftermarket performance bolts like ARP's, you should follow the recommended torque specifications.

351W


Fastener Type Torque Specs

Main cap bolts 95-105 ft.-lbs.
Connecting rod bolts 40-45 ft.-lbs.
Cylinder head bolts 90-100 ft.-lbs.
Rocker arms 17-23 ft.-lbs.
Intake manifold bolts 23-25 ft.-lbs.
Oil pump bolt 23-28 ft.-lbs.
Cam bolts 40-45 ft.-lbs.
Cam thrust plate bolts 8-10 ft.-lbs.
Harmonic damper bolt 70-90 ft.-lbs.
Flywheel/flexplate bolts 75-85 ft.-lbs.
Pressure plate bolts 35 ft.-lbs.
Front cover bolts 12-15 ft.-lbs.

351C, 351M


Fastener Type Torque Spec

Main cap bolts
95-105 ft.-lbs.
Connecting rod bolts
40-45 ft.-lbs. (45-50 ft.-lbs. for Boss 351C)
Cylinder head bolts
(follow factory torque sequence)
105 ft.-lbs. (125 ft.-lbs. for Boss 351C)
Rocker arms (non-adjustable)
18-22 ft.-lbs.
5/16 in. intake manifold bolts
21-25 ft.-lbs.
3/8 in. intake manifold bolts
28-33 ft.-lbs.
Oil pump bolt
25 ft.-lbs.
Cam bolts
40-45 ft.-lbs.
Cam thrust plate bolts
9-12 ft.-lbs.
Harmonic damper bolt
70-90 ft.-lbs.
Flywheel/flexplate bolts
75-85 ft.-lbs.
Pressure plate bolts
35 ft.-lbs.
Front cover bolts
12-18 ft.-lbs.

429-460


Fastener Type Torque Spec

Maincap bolts
95-105 ft.-lbs.
Connecting rod bolts
40-45 ft.-lbs.
Cylinder head bolts
140 ft.-lbs.
Rocker arms (non-adjustable)
18-22 ft.-lbs.
Intake manifold bolts
25-30 ft.-lbs.
Oil pump bolt
25 ft.-lbs.
Cam bolts
40-45 ft.-lbs.
Harmonic damper bolt
70-90 ft.-lbs.
Flywheel/flexplate bolts
75-85 ft.-lbs.
Pressure plate bolts
35 ft.-lbs.
Front cover bolts
12-18 ft.-lbs.

360, 390, 406, 427, 428 FE


Fastener Type Torque Spec

Main cap bolts
95-105 ft.-lbs.
Crossbolts for 406 and 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/flexplate bolts
75-85 ft.-lbs.
Pressure plate bolts
35 ft.-lbs.
Front cover bolts
12-15 ft.-lbs.

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