Ford 302ci 9.28:1 Specs
Ford Ford 302ci · 4.002" × 3.000" · 9.28:1 engine specs: 302 ci (4.9L), 8-cylinder, 4.002" bore x 3" stroke, 9.28:1 compression.
Dimensions
| Displacement | 302 ci / 4.9 L |
|---|
| Bore | 4.002" |
|---|
| Stroke | 3" |
|---|
| Cylinders | 8 |
|---|
| Configuration | V8 |
|---|
| Compression ratio | 9.28:1 |
|---|
| Rod length | 5.09" |
|---|
| Rod ratio | 1.697 |
|---|
| Bore/stroke ratio | 1.334 |
|---|
| Piston deck clearance | 0.0015" |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 135–141 hp |
|---|
| Years | 1973 |
|---|
What these numbers mean
| Bore/stroke character | 1.334 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,000 ft/min — conservative for a street engine |
|---|
| Rod ratio | 1.697 — moderate — the range most production V8s fall in |
|---|
| Displacement per cylinder | 37.8 ci |
|---|
| Static compression | 9.28:1 — low by modern standards, generally happy on regular pump fuel |
|---|
Cylinder head
| Intake valve diameter | 1.791" |
|---|
| Exhaust valve diameter | 1.46" |
|---|
| Chamber volume | 59.9 cc |
|---|
| Rocker ratio | 1.6:1 |
|---|
| Lifter type | hydraulic |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Variants sharing these dimensions (4)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|
| 1973 | 135 hp | — |
| 1973 | 137 hp | — |
| 1973 | 138 hp | — |
| 1973 | 141 hp | — |
Similar engines
Source: NHRA blueprints — nhra.net blueprints
← All Ford 302ci engines