Plymouth 318 Specs
Plymouth 318 engine specs: 318 ci (5.2L), 8-cylinder, 3.9094" bore x 3.311" stroke, 9.2:1 compression.
Dimensions
| Displacement | 318 ci / 5.2 L |
|---|
| Bore | 3.9094" |
|---|
| Stroke | 3.311" |
|---|
| Cylinders | 8 |
|---|
| Compression ratio | 9.2:1 |
|---|
| Bore/stroke ratio | 1.181 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 260 hp |
|---|
What these numbers mean
| Bore/stroke character | 1.181 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,311 ft/min — conservative for a street engine |
|---|
| Displacement per cylinder | 39.8 ci |
|---|
| Static compression | 9.2:1 — low by modern standards, generally happy on regular pump fuel |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Vehicles (2)
- Plymouth Barracuda
- Plymouth Road Runner
Similar engines
← All LA engines