Porsche M48/00 Specs
Porsche M48/00 engine specs: 275.3 ci (4.5L), 8-cylinder, 3.6614" bore x 3.2677" stroke, 11.5:1 compression.
Dimensions
| Displacement | 275.3 ci / 4.5 L |
|---|
| Bore | 3.6614" |
|---|
| Stroke | 3.2677" |
|---|
| Cylinders | 8 |
|---|
| Compression ratio | 11.5:1 |
|---|
| Bore/stroke ratio | 1.12 |
|---|
Construction
| Block material | aluminum |
|---|
| Head material | aluminum |
|---|
| Valvetrain | DOHC |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 340 hp |
|---|
What these numbers mean
| Bore/stroke character | 1.120 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|
| Mean piston speed at 6,000 RPM | 3,268 ft/min — conservative for a street engine |
|---|
| Displacement per cylinder | 34.4 ci |
|---|
| Static compression | 11.5:1 — high enough that pump premium or better is normally required |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Vehicles (2)
Similar engines
← All M48 engines