| NOTE: | All in-line six (6) cylinder firing order: 153624 All in-line eight (8) cylinder firing order: 16258374 All models used a J9 sparkplug gapped at .032 All models were 6 volt positive ground All models Wheel Bolt Pattern 5 x 4.5 All models Tire Size 7.10 x 15 |
| Total Number Built |
Designation & # of Cylinders |
Model | Wheel base Inches |
Weight Min/Max |
Bore and Stroke |
Piston Dis place ment Cubic Inches |
Com pres sion Ratio (Stan dard) |
Maximum Brake H.P. @ R.P.M. |
Point Gap |
Dwell Angle |
Ignition Timing BTDC or Mark |
| 91,333 | Super 6 | 491-P | 124 | 3480/3750 | 3 9/16 x 4 3/8 | 262.0 | 6.50 | 121 @ 4000 | .020 | 38 | 1-6 Mark |
| 32,715 | Commodore 6 | 492 | 124 | 3585/3780 | 3 9/16 x 4 3/8 | 262.0 | 6.50 | 121 @ 4000 | .020 | 38 | 1-6 Mark |
| 6,365 | Super 8 | 493 | 124 | 3545/3565 | 3 x 4 1/2 | 254.5 | 6.50 | 128 @ 4200 | .017 | 27 | 1-8 Mark |
| 28,687 | Commodore Custom 8 | 494 | 124 | 3600/3800 | 3 x 4 1/2 | 254.5 | 6.50 | 128 @ 4200 | .017 | 27 | 1-8 Mark |
1930 1931 1932 1933 1934 1935 1936 1937 1938 1939
1940 1941 1942 1946 1947 1948 1949
1950 1951 1952 1953 1954 1955 1956 1957