Oldsmobile Oldsm 1982 260 111HP Specs
Oldsmobile Oldsm 1982 260 111HP engine specs: 260 ci (4.3L), 8-cylinder, 3.5" bore x 3.385" stroke, 9.551:1 compression.
Dimensions
| Displacement | 260 ci / 4.3 L |
|---|
| Bore | 3.5" |
|---|
| Stroke | 3.385" |
|---|
| Cylinders | 8 |
|---|
| Configuration | V8 |
|---|
| Compression ratio | 9.551:1 |
|---|
| Rod length | 6.002" |
|---|
| Rod ratio | 1.773 |
|---|
| Bore/stroke ratio | 1.034 |
|---|
Construction
| Block material | cast iron |
|---|
| Head material | cast iron |
|---|
| Valvetrain | OHV |
|---|
| Fuel type | gas |
|---|
| Advertised HP | 111 hp |
|---|
| Years | 1982 |
|---|
What these numbers mean
| Bore/stroke character | 1.034 — square — bore and stroke are within 5%, a balanced compromise |
|---|
| Mean piston speed at 6,000 RPM | 3,385 ft/min — conservative for a street engine |
|---|
| Rod ratio | 1.773 — long — less side loading on the cylinder wall, favours high RPM |
|---|
| Displacement per cylinder | 32.5 ci |
|---|
| Static compression | 9.551:1 — in the range that usually runs on pump premium |
|---|
Cylinder head
| Intake valve diameter | 1.527" |
|---|
| Exhaust valve diameter | 1.305" |
|---|
Run the numbers for this engine
Each link opens the calculator with this engine's specs already filled in.
Similar engines
← All Oldsmobile 260ci engines