Dodge Gen III Hemi 10.5:1 Specs
Dodge Gen III Hemi · 3.917" × 3.579" · 10.5:1 engine specs: 345 ci (5.7L), 8-cylinder, 3.9173" bore x 3.5787" stroke, 10.5:1 compression.
Dimensions
| Displacement | 345 ci / 5.7 L |
|---|
| Bore | 3.9173" |
|---|
| Stroke | 3.5787" |
|---|
| Cylinders | 8 |
|---|
| Compression ratio | 10.5:1 |
|---|
| Bore/stroke ratio | 1.095 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | aluminum |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 340–360 hp |
|---|
What these numbers mean
| Bore/stroke character | 1.095 — 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 | 43.1 ci |
|---|
| Static compression | 10.5:1 — in the range that usually runs on pump premium |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|
| — | 340 hp | 5.7L Hemi (Eagle) |
| — | 360 hp | 5.7L Hemi (Eagle VVT) |
Vehicles (6)
- Dodge Ram 1500
- Dodge Durango
- Chrysler 300C
- Dodge Charger R/T
- Jeep Grand Cherokee
- Jeep Wagoneer
Similar engines
← All Gen III Hemi engines