| 390 V8 (250 HP) |
390 V8 (266 HP) |
SUPER 390 V8 (300 HP) |
INTERCEPTOR 390 V8 (330 HP) |
427 V8 (410 HP) |
SUPER 427 V8 (425) |
|
| Displacement Cu. In. | 390 | 390 | 390 | 390 | 427 | 427 |
| Bore (Inches) | 4.05 | 4.05 | 4.05 | 4.05 | 4.23 | 4.23 |
| Stroke (inches) | 3.78 | 3.78 | 3.78 | 3.78 | 3.78 | 3.78 |
| Compression Ratio | 9.4 | 9.4 | 10.1 | 10.1 | 11.5 | 11.2 |
| Type | V8-90° OHV | V8-90° OHV | V8-90° OHV | V8-90° OHV | V8-90° OHV | V8-90° OHV |
| Carburetor | 2V | 2V | 4V | 4V | 4V | 8V |
| Firing Order | 15426378 | 15426378 | 15426378 | 15426378 | 15426378 | 15426378 |
| Fuel Requirements | Regular | Regular | Premium | Premium | Super Premium | Super Premium |
| Idle Speed (RPM)* Manual Trans. in Neutral Multi-Drive in Drive |
575-600 475-500 |
575-600 475-500 |
575-600 475-500 |
575-600 550-575 |
700-800 |
700-800 |
| Ignition Timing Advance** Manual Transmission Multi-Drive Trans. Minimum Maximum Manual Trans. Multi-Drive Trans. |
6° 6° 2° 11° 11° |
6° 6° 2° 11° 11° |
4° 6° 2° 9° 11° |
4° 6° 2° 9° 11° |
8° - 2° 8° - |
8° - 2° 8° - |
| * On air conditioned equipped cars, the engine idle speed should be
set with the air conditioner turned on for a minimum of 20
minutes and the blower speed on "Hi." The car windows should also be open |
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| ** Ignition timing requirements may vary depending upon locality,
fuel, and operating conditions. In order to obtain maximum
economy and performance, the timing may be advanced to a point
just short of audible detonation under load but not to exceed
5° over the normal setting. This does not apply to 427 C.I.D
engines. If the use of sub-standard fuels is encountered, the initial setting may be retarded from the normal setting, However, do not retard the initial setting beyond 2° B.T.D.C. Note: Horsepower listed is the manufacturer's dynamometer rating. |
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