Chevrolet L8T Specs
Chevrolet L8T engine specs: 400 ci (6.6L), 8-cylinder, 4.065" bore x 3.8583" stroke, 10.8:1 compression.
Dimensions
| Displacement | 400 ci / 6.6 L |
|---|
| Bore | 4.065" |
|---|
| Stroke | 3.8583" |
|---|
| Cylinders | 8 |
|---|
| Compression ratio | 10.8:1 |
|---|
| Bore/stroke ratio | 1.054 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | aluminum |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 401 hp |
|---|
What these numbers mean
| Bore/stroke character | 1.054 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,858 ft/min — in the range typical of performance street engines |
|---|
| Displacement per cylinder | 50.0 ci |
|---|
| Static compression | 10.8:1 — 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.
Vehicles (2)
- Chevrolet Silverado 2500HD/3500HD
- GMC Sierra 2500HD/3500HD
Similar engines
← All Gen V LT engines