David Brown 770 Selematic vs International Harvester B-275
11 material differences · fewer than 12
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1965–1970; 1958–1961). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
11 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 770 Selematic | B-275 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 33.0 hp | 34.5 hp | — |
| Engine declared | DAVID BROWN AD 3/49 A (B) | INTERNATIONAL HARVESTER BD-144 | differs |
| Displacement declared | 2.39 L | 2.36 L | — |
| Maximum torque declared | 101 lb·ft · 137 N·m | 95 lb·ft · 129 N·m | +6% 770 Selematic |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 13.7 mph · 22 km/h | +14% 770 Selematic |
| Clutch declared | Pedal-operated dry Borg & Beck single-plate clutch | Pedal operated two stage dry Borg and Beck double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 5.4 gpm · 20.4 L/min | 6.0 gpm · 22.7 L/min | +11% B-275 |
| Three-point lift at ends declared | 1,598 lb · 725 kg | — | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,228 lb · 1,464 kg | 3,459 lb · 1,569 kg | +7% B-275 |
| Wheelbase declared | 75.0 in · 1,905 mm | 74.1 in · 1,883 mm | — |
| Length declared | 112.5 in · 2,858 mm | 122.4 in · 3,110 mm | +9% B-275 |
| Width declared | 64.6 in · 1,641 mm | 65.7 in · 1,670 mm | — |
| Height declared | 48.0 in · 1,219 mm | 60.6 in · 1,540 mm | +26% B-275 |
| Ground clearance declared | 16.5 in · 419 mm | 15.6 in · 397 mm | +6% 770 Selematic |
| Turning radius, braked declared | 10.1 ft · 3.07 m | 9.5 ft · 2.90 m | +6% 770 Selematic |
| Fuel tank declared | 38.5 qt · 36.4 L | 42.0 qt · 39.7 L | +9% B-275 |
David Brown 770 Selematic sources
Source
- Source: Traktorenlexikon, “David Brown 770”
International Harvester B-275 sources
Source
- Source: Traktorenlexikon, “IHC B-275”
- Source: Traktorenlexikon, “McCormick B-250”
- Source: Traktorenlexikon, “McCormick B-275”