Reference Details
- Common issue
- A generic 351 Cleveland block, 2V heads, replacement heads, or appearance callouts do not by themselves prove an original M-code 351C-4V Mach 1 drivetrain.
- Confidence
- reported
- Correct value
- Reference identifies D0AE-G, D0AE-M, D0AE-N, D0AE-R, and D1AE-GA as 1970/71 351C 4V closed-chamber cylinder-head casting numbers found on M-code 351C-4V applications.
- Where to check
- Cylinder-head casting numbers and casting dates on the engine, checked against the car's scheduled build date and original paperwork.