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POWERTRAIN/CHASSIS |
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POWERTRAIN |
6.2L 2V V-8 |
6.7L 4V V-8 |
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Engine type |
SOHC Gas (Flex Fuel) OHV Power Stroke ® Turbo-Diesel |
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Block/head |
Cast iron/aluminum |
Compacted graphite iron/aluminum |
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Bore x stroke |
4.02 x 3.74 in. |
3.90 x 4.25 in. |
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Displacement |
379 cu. in., 6,210 cc |
406 cu. in., 6,651 cc |
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Compression ratio |
9.8:1 |
16.2:1 |
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Fuel injection |
Sequential electronic |
High-pressure common rail |
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Valve operation |
Roller-rocker shaft Pushrod/rocker arms |
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Power |
385 hp @ 5,500 rpm 390 hp @ 2,800 rpm |
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Torque |
405 ft.-lb. @ 4,500 rpm |
735 ft.-lb. @ 1,600 rpm |
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Oil capacity |
7 quarts |
13 quarts |
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Coolant capacity |
21.0 quarts 37.8 quarts (27.8 quarts main cooling system + 10.0 quarts secondary cooling system) |
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Fuel capacity |
35 gallons 37.5 gallons (158-inch and 172-inch WB) / 26 gallons (137-inch, 142-inch and 156-inch WB) |
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Recommended fuel |
Regular unleaded or E85 |
Ultra-low sulfur diesel or B20 (containing 20% or less biodiesel) |
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Transmission type |
Heavy-duty TorqShift ™ six-speed automatic |
Heavy-duty TorqShift six-speed automatic |
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Gear ratios |
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1st |
3.97:1 |
3.97:1 |
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2nd |
2.32:1 |
2.32:1 |
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3rd |
1.52:1 |
1.52:1 |
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4th |
1.15:1 |
1.15:1 |
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5th |
0.86:1 |
0.86:1 |
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6th |
0.67:1 |
0.67:1 |
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Reverse |
3.13:1 |
3.13:1 |
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Available axle ratios |
3.73, 4.30 |
3.31, 3.55, 3.73, 4.30 |
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SUSPENSION |
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Front |
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4x2 |
Independent twin I-beam (narrow front track) with coil springs, shock absorbers, stabilizer bar (F-250/350); Mono beam (wide front track) with coil springs, shock absorbers, stabilizer bar (F-450) |
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Mono beam (narrow front track) with coil springs, shock absorbers, stabilizer bar (F-250/350); |
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4x4 |
Mono beam (wide front track) with coil springs, shock absorbers, stabilizer bar (F-450) |
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Rear |
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Live axle with leaf springs, staggered shock absorbers and stabilizer bar; |
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4x2 |
stabilizer bar standard on DRW models and available with camper package and snowplow package on |
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SRW pickups |
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Live axle with leaf springs, staggered shock absorbers and stabilizer bar; |
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4x4 |
stabilizer bar standard on DRW models and available with camper package and snowplow package on |
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SRW pickups |
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STEERING |
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Type |
Power assist |
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Overall ratio |
20.49:1 (F-250/F-350 4x2); 20.41:1 (F-250/F-350 4x4); 20.41:1 average (F-450) |
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BRAKES |
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Type |
4 wheel vented disc, ABS (standard) |
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Front |
13.66-inch discs (F-250, F-350), 14.53-inch discs (F-450) |
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Rear |
13.39-inch discs (F-250, F-350), 15.35-inch discs (F-450) |
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Assist type |
Vacuum (F-250/F-350 SRW gas engines) / hydro-boost (F-350 SRW diesel engine, F-350 DRW/ F-450) |
