Chevrolet 229ci 9.79:1 Specs
Chevrolet Chevrolet 229ci · 3.736" × 3.484" · 9.79:1 engine specs: 229 ci (3.8L), 6-cylinder, 3.736" bore x 3.484" stroke, 9.79:1 compression.
Dimensions
| Displacement | 229 ci / 3.8 L |
|---|
| Bore | 3.736" |
|---|
| Stroke | 3.484" |
|---|
| Cylinders | 6 |
|---|
| Compression ratio | 9.79:1 |
|---|
| Rod length | 5.7" |
|---|
| Rod ratio | 1.636 |
|---|
| Bore/stroke ratio | 1.072 |
|---|
| Piston deck clearance | 0.002" |
|---|
Construction
| Induction | 1-2 |
|---|
| Advertised HP | 115 hp |
|---|
| Years | 1980 |
|---|
What these numbers mean
| Bore/stroke character | 1.072 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,484 ft/min — conservative for a street engine |
|---|
| Rod ratio | 1.636 — moderate — the range most production V8s fall in |
|---|
| Displacement per cylinder | 38.2 ci |
|---|
| Static compression | 9.79:1 — in the range that usually runs on pump premium |
|---|
Cylinder head
| Intake valve diameter | 1.845" |
|---|
| Exhaust valve diameter | 1.505" |
|---|
| Chamber volume | 55 cc |
|---|
| Rocker ratio | 1.5:1 |
|---|
| Lifter type | hydraulic |
|---|
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 Chevrolet 229ci engines