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Dodge Chrysler 2.2 Trans-4 2-bbl specs: 135 ci (2.2L) 4-cylinder, 3.44 x 3.62 in (87.4 x 91.9 mm) bore and stroke, 8.5:1 compression. Rated 84 hp, 1981–1984.
The Dodge Chrysler 2.2 Trans-4 2-bbl is close to square: 3.44" bore against 3.62" stroke, within 5.0%, which splits the difference between a high-revving layout and a torque layout. The 3.62" stroke puts mean piston speed at 4,000 ft/min around 6,650 RPM, which is where a production bottom end is generally considered at its limit. A rod ratio of 1.646 is in the range most production engines fall in. Each of the 4 cylinders displaces 33.8 ci (553 cc).
8.5:1 on iron heads is low by modern standards and generally happy on regular pump fuel.
It is one of 5 engines in the Dodge 135ci family, all of them 135 ci — the differences between them are in compression, heads and rating, not displacement. 5 factory variants share these dimensions, rated at 84 hp across 1981–1984.
| Displacement | 135 ci / 2.2 L |
|---|---|
| Bore | 3.44" |
| Stroke | 3.62" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 8.5:1 |
| Rod length | 5.96" |
| Rod ratio | 1.646 |
| Bore/stroke ratio | 0.95 |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | SOHC |
| Fuel type | gas |
| Advertised HP | 84 hp |
| Years | 1981–1984 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1981 | net | 84 @ 4800 | — | 8.5:1 |
Factory specification sheet.
| Bore/stroke character | 0.950 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,620 ft/min — in the range typical of performance street engines |
| Rod ratio | 1.646 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 33.8 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 |
|---|---|---|
| 1981 | 84 hp | Chrysler 2.2 Trans-4 2-bbl |
| 1982 | — | Chrysler 2.2 Trans-4 2-bbl |
| 1982 | 84 hp | Chrysler 2.2 Trans-4 2-bbl |
| 1983 | — | Chrysler 2.2 Trans-4 2-bbl |
| 1984 | — | Chrysler 2.2 Trans-4 2-bbl |
4 factory vehicles, 1981–1984. Each year opens that model's engine table.