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Chevrolet 194ci (1962–1966) specs: 194 ci (3.2L) 6-cylinder, 3.563 x 3.25 in (90.5 x 82.6 mm) bore and stroke, 8.5:1 compression. Rated 120 hp, 1962–1966.
The Chevrolet 194ci (1962–1966) is oversquare — the 3.563" bore exceeds the 3.25" stroke by 9.6% — a layout that favors airflow and RPM over leverage at the crank. The 3.25" stroke does not reach 4,000 ft/min of mean piston speed until about 7,400 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. A rod ratio of 1.754 is long by production standards — less side-load on the cylinder wall and gentler piston acceleration around TDC, the geometry that tolerates high RPM. Each of the 6 cylinders displaces 32.3 ci (530 cc).
8.5:1 is low by modern standards and generally happy on regular pump fuel.
It is one of 2 engines in the Chevrolet 194ci family, all of them 194 ci — the differences between them are in compression, heads and rating, not displacement. 6 factory variants share these dimensions, rated at 120 hp across 1962–1966.
| Displacement | 194 ci / 3.2 L |
|---|---|
| Bore | 3.563" |
| Stroke | 3.25" |
| Cylinders | 6 |
| Configuration | I6 |
| Compression ratio | 8.5:1 |
| Rod length | 5.7" |
| Rod ratio | 1.754 |
| Bore/stroke ratio | 1.096 |
| Fuel type | gas |
|---|---|
| Firing order | 1-5-3-6-2-4 |
| Advertised HP | 120 hp |
| Years | 1962–1966 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. | Duration int / exh | Valve lift int / exh | LSA |
|---|---|---|---|---|---|---|---|
| 1962 | gross | 120 @ 4400 | 177 lb-ft @ 2400 | 8.5:1 | 300° | 0.335" | 107° |
| 1963 | gross | 120 @ 4400 | 177 lb-ft @ 2400 | 8.5:1 | — | — | — |
| 1964 | gross | 120 @ 4400 | 177 lb-ft @ 2400 | 8.5:1 | 300° | 0.335" | 107° |
Factory specification sheet. Durations are the factory's advertised figures at the basis printed on the sheet, not duration at .050" lift; lobe separation is calculated from the printed valve timing.
| Bore/stroke character | 1.096 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,250 ft/min — conservative for a street engine |
| Rod ratio | 1.754 — long — less side loading on the cylinder wall, favours high RPM |
| Displacement per cylinder | 32.3 ci |
| Static compression | 8.5:1 — low by modern standards, generally happy on regular pump fuel |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 1962 | 120 hp | — |
| 1963 | 120 hp | — |
| 1964 | — | — |
| 1964 | 120 hp | — |
| 1965 | — | — |
| 1966 | — | — |
5 factory vehicles, 1962–1966. Each year opens that model's engine table.