Ford 427ci 14:1 Specs
Ford Ford 427ci · 4.232" × 3.784" · 14:1 engine specs: 427 ci (7L), 8-cylinder, 4.232" bore x 3.784" stroke, 14:1 compression.
Dimensions
| Displacement | 427 ci / 7 L |
|---|
| Bore | 4.232" |
|---|
| Stroke | 3.784" |
|---|
| Cylinders | 8 |
|---|
| Compression ratio | 14:1 |
|---|
| Rod length | 6.488" |
|---|
| Rod ratio | 1.715 |
|---|
| Bore/stroke ratio | 1.118 |
|---|
| Piston deck clearance | 0.01" |
|---|
Construction
| Induction | 2-4 |
|---|
| Advertised HP | 425 hp |
|---|
| Years | 1965 |
|---|
What these numbers mean
| Bore/stroke character | 1.118 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,784 ft/min — in the range typical of performance street engines |
|---|
| Rod ratio | 1.715 — moderate — the range most production V8s fall in |
|---|
| Displacement per cylinder | 53.4 ci |
|---|
| Static compression | 14:1 — high enough that pump premium or better is normally required |
|---|
Cylinder head
| Intake valve diameter | 2.195" |
|---|
| Exhaust valve diameter | 1.733" |
|---|
| Chamber volume | 66 cc |
|---|
| Rocker ratio | 1.76:1 |
|---|
| Lifter type | mechanical |
|---|
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 Ford 427ci engines