Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1966 Mercury Cyclone 4.7L Eng VIN A, Automatic Trans, Trans Mfr CD C6FACTORY OEM SERVICE PROCEDURE
Tune-Up - V8: Engine: Notes
GENERAL SPECIFICATIONS
| Engine | HP at RPM | Torque (Ft | Compr. Ratio | Bore | Stroke | Displ. CU. Ins. | |
|---|---|---|---|---|---|---|---|
| 289 2-Bbl. | 206 at 4490 | 282 at 1406 | 9.3-1 | 4.00" | 2.87" | 289 | |
| 390" 2-Bbl. | 265 at 4400 | 397 at 2600 | 9.5-1 | 4.65" | 3.78" | 390 | |
| 2-Bbl. | 275 at 4400 | 405 at 2600 | 9.5-1 | 4.05" | 3.78" | 390 | |
| 410 4-Bbl. | 330 at 4600 | 444 at 2800 | 10.5-1 | 4.05" | 3.98" | 410 | |
| 428" 4-Bbl. | 345 at 4600 | 462 at 2800 | 10.5-1 | 4.13" | 3.98" | 428 | |
| 4-Bbl. Police | ..... | ..... | ..... | 4.13" | 3.98" | 428 | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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