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1946-64 Tune-up Specifications

 
  
Year
Engine or 
Car Model
Spark 
Plug Gap
Point
Gap
Dwell
Angle
Firing
Order
Ignition Timing 
(BTDC or Mark)
Valve Lash
Intake
Exhaust
1946-49
All
.025
.016
21-30
16258374
"ADV" Flywheel
.015H   1
.015H  1
1950-52
All
.025
.016
21-30
16258374
"ADV" Flywheel
.015H  1
.015H  1
1953
Series 40 
.025
.016
21-30
16258374
"ADV"  Flywheel
.015H
.015H
All
.032
.016
21-30
12784563   2
"ADV" Flywheel
Zero
Zero
1954
All
.032
.016
21-30
12784563   2
Zero
Zero
1955
All
.032
.016
26-33
12784563   2
Zero
Zero
1956
All
.032
.016
26-33
12784563   2
Zero
Zero
1957
All
.032
3
26-33
12784563   2
Zero
Zero
1958
All
.032
3
30
12784563   2
4
Zero
Zero
1959
364, 401  Std. 
.032
.016 3
30
12784563   2
Zero
Zero
364, 401  Auto 
.032
.016 3
30
12784563   2
12°
Zero
Zero
1960
364, 401  Std. 
.032
.016 3
30
12784563   2
Zero
Zero
364, 401 Auto
.032
.016  3
30
12784563   2
12°
Zero
Zero
1961-62
364, 401
.032
.016  3
30
12784563   2
12°
Zero
Zero
V6 198
.035
.016 3
30
165432   5
Zero
Zero
V8 215
.035
.016  3
30
18436572  6
Zero
Zero
1963
401, 425 Std. 
.035
.016 3
30
12784563  2
Zero
Zero
401, 425 Auto
.035
.016 3
30
12784563  2
12°
Zero
Zero
V6 198
.035
.016 3
30
165432   5
Zero
Zero
V8 215
.035
.016  3
30
18436572  6
Zero
Zero
1964
V6 225
.035
.016  3
30
165432   5
Zero
Zero
V8 300 Special
.035
.016 3
30
18436572  6
2.5°
Zero
Zero
V8 300 Lesabre
.035
.016  3
30
18436572   6
2.5°
Zero
Zero
V8 401, 425
.035
.016 3
30
12784563  2
2.5° 7
Zero
Zero
1 - With mechanical valve lifters.  2 - Cylinders numbering front to rear:  3 - Turn adjusting screw clockwise until engine
     Zero with Hydraulic lifters.              Right bank 1357  left bank 2468              begins to misfire, then back 1/2 turn

4 - Std. 5°   Auto 12°                           5 - Cylinders numbering front to rear:   6 - Cylinders numbering front to rear:
                                                                   Right bank 246  left bank 135                   Right bank 2468  left bank 1357
7 - 12° for V8 425 with 2 carbs./ 
     Auto trans.