 Fig. 1 Cylinder head bolt torque sequence-Buick V-8 |
 Fig. 2 Intake manifold torque sequence-Buick V-8 |
 Fig. 3 Timing mark alignment-Buick V-6 and V-8 |
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Automotive Torque Specifications |
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| Home | Buick | Buick Full Size 1970-88 |
Buick Full Size 1970-88
LeSabre, Estate, Electra and Limited
Engine
| Buick V-8 | |||
|---|---|---|---|
| Component | Torque | ||
| Cylinder Head Bolts | 350 cu. in. | 80 ft. lbs. | |
| 455 cu. in. | 100 ft. lbs. | ||
| Exhaust Manifold Bolts | 25 ft. lbs. | ||
| Flywheel/Driveplate Bolts | 60 ft. lbs. | ||
| Intake Manifold Bolts | 45 ft. lbs. | ||
| Main Bearing Cap Bolts | 350 cu. in. 1970-72 | 95 ft. lbs. | |
| 1973-76 ( All ) | 115 ft. lbs. | ||
| 1977 and Later | 100 ft. lbs. | ||
| Oil Pan Bolts | 10 ft. lbs. | ||
| Oil Pump Cover Screws | 10 ft. lbs. | ||
| Rocker Arm Cover Bolts | 4 ft. lbs. | ||
| Rocker Arm Shaft Nuts | 30 ft. lbs. | ||
| Rod Bearing Cap Nuts/Screws | 350 cu. in. | 1970-73 ( With nut ) | 35 ft. lbs. |
| 1970-73 ( With cap screw ) | 40 ft. lbs. | ||
| 455 cu. in. ( All ) | 45 ft. lbs. | ||
| Thermostat Housing-to-Intake Manifold Bolts | 20 ft. lbs. | ||
| Timing Chain Cover Bolts | 30 ft. lbs. | ||
| Vibration Damper-to-Crankshaft Bolt | 350 cu. in. | 1970-72 | 120 ft. lbs. |
| 1973-75 | 140 ft. lbs. | ||
| 1976-77 | 175 ft. lbs. | ||
| 1978 and Later | 225 ft. lbs. | ||
| 455 cu. in. | 1970-75 | 200 ft. lbs. | |
| 1976 | 225 ft. lbs. | ||
Fig. 1 Cylinder head bolt torque sequence-Buick V-8 |
Fig. 2 Intake manifold torque sequence-Buick V-8 |
Fig. 3 Timing mark alignment-Buick V-6 and V-8 |
For images, go to www.torquespecs.com
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