Bore, stroke, displacement and compression for all 3 Lincoln MEL engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 430–462 ci |
|---|---|
| Cylinders | 8 |
| Bore | 4.358" |
| Stroke | 3.598–3.902" |
| Compression | 10.0:1 |
| Advertised power | 315–350 hp |
| Years | 1959–1960 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 462 MEL V8 | 462 ci | 4.3583" × 3.9016" | 10:1 | 340 |
| 430 MEL V8 | 430 ci | 4.3583" × 3.5984" | 10:1 | 315 |
| J-code | 430 ci | 4.3583" × 3.5984" | — | 350 |
Every engine here shares a 4.3583" bore; displacement varies by stroke alone, which is the signature of a family built on one block with different cranks.
All are oversquare — bore larger than stroke, which favours revs over low-end torque.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.