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Ram 360 LA V8 specs: 360 ci (5.9L) 8-cylinder, 4.00 x 3.579 in (101.6 x 90.9 mm) bore and stroke, 8.4:1 compression. Rated 175 hp. Rod ratio and piston speed.
The Ram 360 LA V8 is oversquare — the 4" bore exceeds the 3.5787" stroke by 11.8% — a layout that favors airflow and RPM over leverage at the crank. The 3.5787" stroke puts mean piston speed at 4,000 ft/min around 6,700 RPM, which is where a production bottom end is generally considered at its limit. Each of the 8 cylinders displaces 45.0 ci (737 cc).
8.4:1 on iron heads is low by modern standards and generally happy on regular pump fuel.
Factory fitments include the Dodge Ram 250, Dodge Ramcharger, Dodge W-Series and 1 other.
| Displacement | 360 ci / 5.9 L |
|---|---|
| Bore | 4" |
| Stroke | 3.5787" |
| Cylinders | 8 |
| Compression ratio | 8.4:1 |
| Bore/stroke ratio | 1.118 |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | gas |
| Advertised HP | 175 hp |
| Bore/stroke character | 1.118 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,579 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 45.0 ci |
| Static compression | 8.4:1 — low by modern standards, generally happy on regular pump fuel |
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