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BUICK
Engine Torque Values

 
Year
Engine
Spark
Plug
9
Cylinder
 Head 
Bolts
Intake
Manifold
Exhaust
Manifold
Rocker Arm
 Shaft 
Bracket
Rocker
 Arm 
Cover 
Connecting
Rod
Cap Bolts
Main 
Bearing
Cap Bolts
Flywheel
 to
 Crankshaft
Vibration
Damper to
Pulley
1959
All
22-28
65-75
25-30
10-15
30-35
4-6
40-45
100-110
50-60
200 
1960
All
25-30
65-75
25-30
10-15
30-35
4-6
40-45
100-110
50-60
200
1961-63
V6-198
25-30
65-70
25-30
10-15
30-35
3-5
30-35
100-125 1
50-60
140-160
V8-215
15-20
50-55
25-30
10-15
25-30
3-5
30-35
50-55 2
50-60
140-160
V8-364
25-35
65-75
25-30
10-15
30-35
3-5
40-45
100-110
50-60
200
V8-401
25-35
65-80
25-35
10-15
30-35
3-5
40-50
100-110
50-65
200
V8-425
25-35
65-80
25-35
10-15
30-35
3-5
40-50
100-110
50-65
200
1964
V6-225
25-35
60-70
25-35
10-15
25-30
3-5
60-75
65-70
50-60
140
V8-300
25-35
60-70
25-35
10-15
25-35
3-5
60-75
50-55 3
50-60
140
401, 425
25-35
65-75
25-30
10-15
30-35
3-5
40-45
100-110
50-60
200
1965
V6-225
25-35
65-80
25-35
10-15
25-35
3-5
30-40
95-120
50-65
140
300,340
25-35
65-80
25-35
10-15
25-35
3-5
30-40
95-120
50-65
140
401, 425
25-35
65-80
25-35
10-15
25-35
3-5
40-50
95-120
50-65
200
1966
V6-225
25-35
65-80
45-55
10-15
25-35
3-5
30-40
95-120
50-65
-
300, 340
25-35
65-80
45-55
10-15
25-35
3-5
30-40
95-120
50-65
140
400,401,425
25-35
65-80
25-35
10-15
25-35
3-5
40-50
80-110
50-65
200
1967
V6-225
25-35
65-80
45-55
15-20
25-35
3-5
30-40
95-120
50-65
-
300, 340
25-35
65-80
45-55
15-20
25-35
3-5
30-40
95-120
50-65
140
400,401,425
15
100-120
45-55
15-20
25-35
3-5
45-50
80-115
50-65
200
1968-69
6-250
25
95
4
4
-
5
35
65
60
5
V8-350
15
75
55
18
30
4
35
95
60
140
400, 430
15
100
55
18
30
4
45
110
60
200
1970-72
6-250
25 6
95
4
4
-
5
35
65
60
5
V8-350
15
75
55
18
25
4
35
95
60
120
V8-455
15
100
55 7
18
25
4
45
110
58
200
1973
6-250
15
95
35
30
-
4
35
65
60
5
V8-350
15
80
45
28
30
4
40
115
60
140
V8-455
15
100
65
18
30
4
45
115
60
200
1974
6-250
15
95
35
30
-
4
35
65
60
5
V8-350
15
80
45
28
30
4
40
115
60
140
V8-455
15
100
45
28
30
4
45
115
60
200
1975
 
6-250
15
95
35
30
-
4
35
65
60
60
V6-231
15
75
45
25
30
5
40
115
55
150
V8-260
15
85
40
25
-
7
42
8
60
255
V8-350
15
95
45
28
30
4
40
115
60
150
V8-400
15
95
40
30
-
8
45
10
95
160
V8-455
15
100
45
28
30
4
45
115
60
200

Torque Specs are for clean and lightly oiled threads in Ft.-lbs.

1 - Rear bearing cap 100-110 ft.lbs.

2- Rear bearing cap 65-70 ft.lbs.

3-Rear bearing cap 60-70 ft.lbs.

4- End clamps 20, center bolts 30
5- Pressed on

6- 1971 use 15 ft.-lbs.

7- 1971-72 use 65 ft.-lbs.

8- Cap # 1,2,3,4   80 ft.-lbs.
    Cap # 5 120 ft.-lbs.
9- Dry threads

10- Rear main 120 ft.-lbs,
      All others 100 ft.-lbs.