Automotive Torque Specifications
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High Performance Engine Torque Specifications American V6s & V8s

Ford Engines

Ford 90° Small-Block Engines
Component  

Torque

221, 260, 289 and 302

 

 Torque

302 Boss

 Torque

289HP & 351W 
Cylinder Head Bolts Step 1 50 ft. lbs. 45 ft. lbs. 55 ft. lbs.
Step 2 60 ft. lbs. 55 ft. lbs. 65 ft. lbs.
Step 3 65-72 ft. lbs. 65-72 ft. lbs. 95-100 ft. lbs.
Intake Manifold Bolts 23-25 ft. lbs. 23-25 ft. lbs. 23-25 ft. lbs.
Main Bearing Cap Bolts 60-70 ft. lbs. 60-70 ft. lbs. (inner)

35-40 ft. lbs. (outer)

 95-105 ft. lbs.
Positive Stop Nut 18 ft. lbs. N/A N/A
Rocker Arm Stud N/A 65-75 ft. lbs. 65-75 ft. lbs. (289)

18-20 ft. lbs. (351W)
Rod Bearing Cap Nuts 19-24 ft. lbs. 40-45 ft. lbs. 40-45 ft. lbs.
Ford Cleveland & "M" Engines

351C  M   400cu. in.
Component Torque
Cylinder Head Bolts Step 1 55 ft. lbs.
Step 2 65 ft. lbs.
Step 3 95-100 ft. lbs.
Intake Manifold Bolts 23-25 ft. lbs.
Main Bearing Cap Bolts Inner & #2 Bolt 95-105 ft. lbs.
Outer 35-45 ft. lbs.
Rocker Arm Bolt 17-23 ft. lbs.
Rocker Arm Stud 65-75 ft. lbs.
Rod Bearing Nuts 40-45 ft. lbs.
Ford FE Series Engines
Component Torque

352, 390, 410 and 428cu. in.

 Torque

406 & 427cu. in.
Cylinder Head Bolts Step 1 70 ft. lbs. 90 ft. lbs.
Step 2 80 ft. lbs. 100 ft. lbs.
Step 3 80-90 ft. lbs. 100-110 ft. lbs.
Intake Manifold Bolts 32-35 ft. lbs. 25-28 ft. lbs. (406)

32-35 ft. lbs. (427)
Main Bearing Cap Bolts 95-105 ft. lbs. 95-105 ft. lbs.
Main Bearing Cap Bolts (Cross bolt) N/A 42 ft. lbs.
Rocker Arm Shaft 40-45 ft. lbs. 40-45 ft. lbs.
Rod Bearing Nuts 40-45 ft. lbs.

50-58 ft. lbs. (428)

 53-58 ft. lbs.
Ford 385 Series Engines
Component Torque

429 & 460cu. in.

 Torque

Boss 429
Cylinder Head Bolts Step 1 75 ft. lbs. 55-60 ft. lbs.
Step 2 105 ft. lbs. 75-80 ft. lbs.
Step 3 130-140 ft. lbs. 90-95 ft. lbs.
Intake Manifold Bolts 25-30 ft. lbs. 25-30 ft. lbs.
Main Bearing Cap Bolts 95-105 ft. lbs. 95-105 ft. lbs. (1/2" bolt)
70-80 ft. lbs. (7/16" bolt)
35-40 ft. lbs. (5/8" bolt)
Positive Stop Nut 18-20 ft. lbs. N/A
Rocker Arm Shaft Bolt N/A 12-15 ft. lbs.
Rocker Arm Stud 65-75 ft. lbs. N/A
Rod Bearing Nuts 40-45 ft. lbs. 70-75 ft. lbs. ("S")

40-45 ft. lbs. ("T")
Ford SVO V6 Engines
Component Torque
Cylinder Head Bolts & Studs Step 1 50 ft. lbs.
Step 2 65 ft. lbs.
Step 3 75 ft. lbs.
Step 4 85 ft. lbs.
Intake Manifold Bolts 19-28 ft. lbs.
Main Bearing Cap Bolts 70 ft. lbs.
Main Bearing Cap Nuts 100 ft. lbs.
Oil Pan Bolts 17-24 ft. lbs.
Timing Chain Cover Bolts 15-22 ft. lbs.
Valve Cover Bolts 12-15 ft. lbs.
Vibration Damper-to-Crankshaft Bolt 70-90 ft. lbs.
Water Pump Bolts 15-22 ft. lbs.
Head Bolt Torque Sequence-All V8
Torque sequence-Ford V6 SVO Engine

 

 

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