Chevrolet 400ci 10.201:1 Specs
Chevrolet Chevrolet 400ci · 4.125" × 3.750" · 10.201:1 engine specs: 400 ci (6.6L), 8-cylinder, 4.125" bore x 3.75" stroke, 10.201:1 compression.
Dimensions
| Displacement | 400 ci / 6.6 L |
|---|
| Bore | 4.125" |
|---|
| Stroke | 3.75" |
|---|
| Cylinders | 8 |
|---|
| Configuration | V8 |
|---|
| Compression ratio | 10.201:1 |
|---|
| Rod length | 5.57" |
|---|
| Rod ratio | 1.485 |
|---|
| Bore/stroke ratio | 1.1 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 175–180 hp |
|---|
| Years | 1974–1975 |
|---|
What these numbers mean
| Bore/stroke character | 1.100 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,750 ft/min — in the range typical of performance street engines |
|---|
| Rod ratio | 1.485 — short — more side loading and piston dwell at TDC, typical of stroker combinations |
|---|
| Displacement per cylinder | 50.0 ci |
|---|
| Static compression | 10.201:1 — in the range that usually runs on pump premium |
|---|
Cylinder head
| Intake valve diameter | 1.945" |
|---|
| Exhaust valve diameter | 1.505" |
|---|
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 |
|---|
| 1974 | 180 hp | — |
| 1975 | 175 hp | — |
Similar engines
← All Chevrolet 400ci engines