Chrysler Chrys 2021 392 450HP Specs
Chrysler Chrys 2021 392 450HP engine specs: 392 ci (6.4L), 8-cylinder, 4.09" bore x 3.73" stroke, 11.4:1 compression.
Dimensions
| Displacement | 392 ci / 6.4 L |
|---|
| Bore | 4.09" |
|---|
| Stroke | 3.73" |
|---|
| Cylinders | 8 |
|---|
| Configuration | V8 |
|---|
| Compression ratio | 11.4:1 |
|---|
| Rod length | 6.2" |
|---|
| Rod ratio | 1.662 |
|---|
| Bore/stroke ratio | 1.097 |
|---|
| Piston deck clearance | 0" |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 450 hp |
|---|
| Years | 2021 |
|---|
What these numbers mean
| Bore/stroke character | 1.097 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,730 ft/min — in the range typical of performance street engines |
|---|
| Rod ratio | 1.662 — moderate — the range most production V8s fall in |
|---|
| Displacement per cylinder | 49.0 ci |
|---|
| Static compression | 11.4:1 — high enough that pump premium or better is normally required |
|---|
Cylinder head
| Intake valve diameter | 2.14" |
|---|
| Exhaust valve diameter | 1.65" |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Similar engines
Source: NHRA blueprints — nhra.net blueprints
← All Chrysler 392ci engines