The Poorman's Off Chassis Restoration.Com
Car Nose Logo
Photo Gallery
Web Cam
Specs
Cost
Links
Raffle
Pin-ups
Erudition
Contact
Store
Home
IPC
Video
Parts
Comedy
Destructive Tests
 

CORVETTE

1953-64 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
1953-54
All
.035
.015
41-47
153624
Ball  Flywheel
.010H
.02H
1955
6
.035
.016
41-47
153624
Ball  Flywheel
.006H
.013H
V8
.035
.019
1
18436572 2
.008H
.018H
1956
All
.035
.019
1
18436572  2
.008H
.018H
1957
220 hp
.035
.019
1
18436572  2
4°
1 Turn 3
245 hp
.035
.019
1
18436572  2
12°
1 Turn 3
250 hp
.035
.019
1
18436572  2
13°
1 Turn 3
270 hp
.035
.019
1
18436572  2
12°
1 Turn 3
283 hp
.035
.019
1
18436572  2
.012H
.018H
1958-59
230 hp
.035
4
30
18436572  2
Zero
Zero
245 hp
.035
4
30
18436572  2
1 Turn 3
250 hp
.035
5
1
18436572  2
1 Turn 3
270 hp
.035
5
1
18436572  2
7°
.012H
.018H
290 hp
.035
5
1
18436572  2
14°
.012H
.018H
1960-61
230 hp
.035
4
30
18436572  2
1 Turn 3
245 hp .035 4 30 18436572 2
12°
1 Turn 3
270 hp .035 5 1 18436572 2
12°
.012H
.018H
275 hp .035 5 1 18436572 2
.012H
.018H
315 hp .035 5 1 18436572 2
18°
.012H
.018H
1962
250 hp
.035
4
30
18436572  2
1 Turn 3
300 hp .035 4 30 18436572 2
1 Turn 3
340 hp .035 5 1 18436572 2
10°
.008H .018H
360 hp .035 5 1 18436572 2
10°
.008H .018H
1963
250 hp
.035
5
30
18436572  2
1 Turn 3
300 hp
.035 5 30 18436572 2
1 Turn 3
340 hp
.035 5 30 18436572 2
10°
.008H
.018H
360  hp
.035 5 30 18436572 2
10°
.008H
.018H
1964
250 hp
.035
5
30
18436572  2
1 Turn 3
300 hp
.035 5 30 18436572 2
8°
1 Turn 3
365 hp
.035 5 30 18436572 2
10°
.030H
.030H
365 hp
.035 5 30 18436572 2
10°
.030H
.030H
1 -  Each set of points 28-30° , total dwell 
both sets 33-35°

2 - Cylinders numbering front to rear:
Right bank 2468  left bank 1357
3 - Turn rocker adjusting screw clockwise until
all lash is removed. Then addition turns specified. 

4 - New points .018" , used .015"

5- New points .019" , used .016"