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PLYMOUTH

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
1946-50
All
.025
.020
35-38
153624
DC
.010H
.010H
1951-53
All
.035
.020
35-38
153624
DC
.010H
.010H
1954
All
.035
.020
36-42
153624
Pulley
.010H
.010H
1955
6
.035
.020
39
153624
.010H
.010H
V8
.035
.017
1
18436572 2
Pulley
Zero
Zero
1956
6
.035
.020
39
153624
.010H
.012H
V8-270
.035
.017
31
18436572  2
Pulley
Zero
Zero
V8-277
.035
.017
31
18436572 2
3
.012H
.020H
V8-318
.035
.017
31
18436572 2
.010H
.018H
1957
6 
.035
.020
39
153624
.010H
.010H
V8-277
.035
.017
29
18436572  2
 6      Pulley
.008H
.018H
V8-301
.035
.017
29
18436572 2
 7     Pulley
.008H
.018H
V8-318
.035
.017
5
18436572 2
.008H
.018H
1958
6-230 
.035
.020
39
153624
.010H
.010H
V8-318  D't IBP-4003F
.035
.017
27-32
18436572  2
10°
.010H
.018H
V8-318   D't IBP-4003D
.035
.017
27-32
18436572  2
10°
.010H
.018H
V8-318   D't IBS-4003
.035
.017
5
18436572  2
.010H
.018H
V8-350
.035
.017
5
18436572  2
.060 -.210 10
1959
6-230
.035
.020
39
153624
2 1/2°
.010H
.010H
V8-318
.035
.017
27-32
18436572  2
10°
.010H
.018H
V8-361 
.035
.017
11
18436572  2
7 1/2°
.060 -.210 10
1960
6-170     
.035
.020
40-45
153624
2 1/2° Pulley
.010H
.020H
6-4 Bar. Carb
.028
.020
40-45
153624
10°        Pulley
.010H
.020H
6-225 Std. Tr. Ply.
.035
.020
36-42
153624
2 1/2° Pulley
.010H
.020H
6-225 Auto Tr. Ply.
.035
.020
36-42
153624
          Pulley
.010H
.020H
V8-318 Std. Trans
.035
.017
27-32
18436572  2
.010H
.018
V8-318 Auto trans
.035
.017
27-32
18436572  2
10°
.010H
.018
8-361, 383
.035
.017
27-32
18436572  2
10°
.060 -.210 10
8-383 Ram Manifold
.035
.017
27-32
18436572  2
7 1/2°
.016C
.028C
1961
6-170, 225
.035
.020
36-42
153624
2 1/2°  Pulley
.010H
 .020H
V8-318 Std. Trans	
.035
.017
27-32
18436572  2
.010H
.018H
V8-318 Auto Trans
.035 
.017
27-32
18436572  2
10°
.010H
.018H
V8-361 .035
.017
11
18436572  2
10°
12
12
V8-383	
.035
.017
11
18436572  2
7 1/2°
.016C
.028C
1962
6-170, 225
.035
.020
40-45
153624
2 1/2°   Pulley
.010H
.020H
8-318 Std. Trans
.035
.017
27-32
18436572  2
.013H
.021H
8-318 Auto Trans
.035
.017
27-32
18436572  2
10°
.013H
.021H
8-361 "880" 
.035
.017
11
18436572 2
10°
.060 -.210 10
1963
6-170, 225
.035
.20
40-45
153624
2 1/2°  Pulley
.010H
.020H
8-318 Std. Trans
.035
.017
28-33
18436572  2
.013H
.021H
8-318 Auto Trans
.035
.017
28-33
18436572  2
10°
.013H
.021H
8-361, 383 
.035
.017
28-33
18436572  2
10°
.060 -.210 10
8-383, 426 Hi-Perf.
.035
.017
11
18436572  2
10°
.060 -.210 10
1964
6-170, 225
.035
.20
40-45
153624
2 1/2°
.010H
.020H
8-273 Std. Trans
.035
.017
28-33
18436572  2
.013H
.021H
8-273 Auto  Trans
.035
.017
28-33
18436572  2
10°
.013H
.021H
8-318 Std. Trans
.035
.017
28-33
18436572  2
.013H
.021H
8-318 Auto  Trans
.035
.017
28-33
18436572  2
10°
.013H
.021H
8-361 
.035
.017
28-33
18436572  2
10°
.060 -.210 10
8-383,426 
.035
.017
11
18436572  2
10°
.060 -.210 10
8-426 Hemi Charg.
.020
.017
16
18436572  2
17
.028C
.032C
1- Each set of points 26-28°, total dwell 
both sets 32-36°.

3- TDC on V8-277 with 4 Bar. carb.

2- Cylinder numbering (front to rear): Left
bank 1-3-5-7  Right bank 2-4-6-8.

5- Each set of points 29-32°, total dwell 
both sets 36-39°.
6- With IBJ distributor TDC, with IBP
distributor 4°.

7- With IBp-4003A distributor  4°, with IBP-
4033 10°

10- With lifters collapsed.

11-Each set of points 27-32°.Total dwell
both sets 34-40°.
12- W/2 bar. carb .060-.210 with lifter 
collapsed.  With 4 bar. carb. Intake .016C
Exhaust .028C

16- Each set of points 27-31°, total dwell 
both sets 34-38°.

17-With N61Y plugs, 31° @3000 rpm.
With N58R plugs, 34° @3000 rpm.