This page provides a detailed comparison of the specifications for the Massey-Harris 81 and the Oliver 66 Row-Crop.
| Massey-Harris 81 | Oliver 66 Row-Crop | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Continental | Oliver-Waukesha |
| Engine Model | F124 | - |
| Engine Cooling Type | Liquid-cooled | - |
| Engine Fuel Type | Gasoline | Gasoline |
| Engine Induction Type | Naturally Aspirated | Naturally Aspirated |
| Engine Cylinders | 4 | 4 |
| Engine Displacement Value | 124 ci (2.0 L) | 129 ci (2.1 L) |
| Engine Rated Rpm | 1500 | 1600 |
| Transmission | ||
| Transmission Type | Unsynchronized gear | Unsynchronized gear |
| Transmission Forward Gears | 4 | 6 |
| Transmission Reverse Gears | 1 | 2 |
| Dimensions | ||
| Length Value | 119 | 134.8 |
| Operating Weight Value | 2895 lb (1313 kg) | 3193 lb (1448 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Operator Station Type | - | Open |
| Starter Type | Electric Starter | - |
