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AMERICAN MOTORS
 

1958-64 Tune-up Specifications
 
Year Engine Car Model Spark Plug Gap Point Gap Dwell Angle Firing Order

Ignition Timing (BTDC or Mark)

 Valve Lash
Intake Exhaust
1958 6-L-head .035 .016 28-35 153624 3° .016H .018C
6-O-head .035 .016 28-33 153624 5° .012H .016H
8-250 .035 .016 28-32 18436572
1
 5° .012H .014H
8-327 .035 .016 28-32 18436572
1
 5° Zero Zero
1959 Flat Head Six .035 .016 28-35 153624 3° .016C .018C
OHV six .035 .016 28-35 153624 5° .012H .016H
8-250 .035 .016 28-32 18436572
1
 TDC .012H .014H
8-327 .035 .016 28-32 18436572
1
 5° Zero Zero
1960 6-American
2
 .035 .020 37-41 153624 3° .016C .018C
6-American
Custom 3
 .035 .016 28-35 153624 8° .012H .016H
6-American
Custom 4
 .035 .016 28-35 153624 10° .012H .016H
6-Rambler .035 .016 28-35 153624 5° .012H .016H
8-250 .035 .016 28-32 18436572
1
 TDC .012H .014H
8-327
250hp
 .035 .016 28-32 18436572
1
 TDC Zero Zero
8-327
270hp
 .035 .016 28-32 18436572
1
 5° Zero Zero
1961 6-American
2
 .035 .020 37-41 153624 3° .016C .018C
6-American
Custom 3
 .035 .016 28-35 153624 8° .012H .016H
6-American
Custom 4
 .035 .016 28-35 153624 10° .012H .016H
6-Rambler .035 .016 28-35 153624 8° .012H .016H
8-250
Std trans
 .035 .016 28-32 18436572
1
 TDC .012H .014H
8-250
Auto trans
 .035 .016 28-32 18436572
1
 5° .012H .014H
8-327 .035 .016 28-32 18436572
1
 5° Zero Zero
1962 6-American
L-head
.035 .020 36-42 153624 3° .016C .018C
6-American
OHV 2
 .035 .016 28-35 153624 8° .016H
5
 .018H
5
6-American
OHV 3
 .035 .016 28-35 153624 10° Zero
6
 Zero
6
6-Rambler .035 .016 28-35 153624 5° .012H .016H
8-327
Std trans
 .035 .020 28-32 18436572
1
 5° Zero Zero
8-327
Auto trans
 .035 .020 28-32 18436572
1
 3° Zero Zero
1963 6-American
L-head
.035 .016 31-34 153624 3° .016C .018C
6-American
OHV 2
 .035 .016 31-34 153624 8° .012H
7
 .016H
7
6-American
OHV 3
 .035 .016 31-34 153624 10° .012H
7
 .016H
7
6-Rambler .035 .016 31-34 153624 5° .012H
7
 .016H
7
6-232 .035 .016 31-34 153624 5° Zero Zero
8-
Std trans
 .035 .016 28-32 18436572
1
 TDC Zero Zero
8-
Auto trans
 .035 .016 28-32 18436572
1
 5° Zero Zero
1964 6-American
L-head
.035 .016 31-34 153624 3° .016C .018C
6-American
OHV 2
 .035 .016 31-34 153624 8° .012H
7
 .016H
7
6-American
OHV 3
 .035 .016 31-34 153624 10° .012H
7
 .016H
7
6-Rambler .035 .016 31-34 153624 5° .012H .016H
6-232 .035 .016 31-34 153624 5° Zero Zero
8-
Std trans
 .035 .016 28-32 18436572
1
 TDC Zero Zero
8-
Auto trans
 .035 .016 28-32 18436572
1
 5° Zero Zero

1- Cylinders numbering front to rear:

Left bank 1357

Right bank 2468

2- Std. trans

3- Auto trans

4- Power steering add 2°

5- Cast iron block

6- Aluminum block

7- With aluminum block hydraulic lifters are used and clearance is zero