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Mercury FE (1959) specs: 332 ci (5.4L) 8-cylinder, 4.00 x 3.299 in (101.6 x 83.8 mm) bore and stroke. Rated 225 hp, 1959. OHV. Rod ratio and piston speed.
The Mercury FE (1959) is oversquare — the 4" bore exceeds the 3.2992" stroke by 21.2% — a layout that favors airflow and RPM over leverage at the crank. The 3.2992" stroke does not reach 4,000 ft/min of mean piston speed until about 7,250 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 8 cylinders displaces 41.5 ci (680 cc).
It is one of 34 engines in the FE family, the smallest at 332 ci.
| Displacement | 332 ci / 5.4 L |
|---|---|
| Bore | 4" |
| Stroke | 3.2992" |
| Cylinders | 8 |
| Configuration | V8 |
| Bore/stroke ratio | 1.212 |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | gas |
| Advertised HP | 225 hp |
| Years | 1959 |
| Bore/stroke character | 1.212 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,299 ft/min — conservative for a street engine |
| Displacement per cylinder | 41.5 ci |
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