Powertrain/Chassis

Engine Type

4.2L V-6

4.6L V-8

5.4L V-8

6.8L V-10

7.3L Diesel

Drivetrain Layout

Rear wheel drive

Rear wheel drive

Rear wheel drive

Rear wheel drive

Rear wheel drive

Valvetrain

OHV, 2 Valves per cylinder

SOHC, 2 Valves per cylinder

SOHC, 2 Valves per cylinder

SOHC, 2 Valves per cylinder

OVH, 2 valves per cylinder

Bore/Stroke (in.)

3.81 x 3.74

3.55 x 3.54

3.55 x 4.16

3.55 x 4.16

4.11 x 4.18

Displacement cu in. (cc)

256 (4196)

281 (4606)

330 (5409)

415 (6802)

444 (7277)

Compression Ratio

9.2:1

9.3:1

9.0:1

9.0:1

17.5:1

Horsepower @ rpm

191 @4800

225 @ 4800

255 @ 4500

305 @ 4250

215 @ 2600

Torque (lb.-ft.) @ rpm

244 @ 2750

286 @ 3500

350 @ 2500

420 @ 3250

425 @ 1800

Recommended Fuel

87 octane (minimum)

87 octane (minimum)

87 octane (minimum)

87 octane (minimum)

1D or 2D Diesel

Fuel System

Sequential multi-port electronic fuel injection (SEFI)

Sequential multi-port electronic fuel injection (SEFI)

Sequential multi-port electronic fuel injection (SEFI)

Sequential multi-port electronic fuel injection (SEFI)

Hydraulic electronic unit fuel injection (HEUI) direct injection

Oil Capacity with Filter (quarts)

6

6

6

6

6

Transmission

4-speed

4-speed

4-speed automatic

4-speed

4-speed

automatic

automatic

(4R70W

(4R100 on

automatic

automatic

(4R70W)

(4R70W)

on E-150)

E-250/350 SD)

(4R100)

(4R100)

Gear Ratios

1st

2.84:1

2.84:1

2.84:1

2.71:1

2.71:1

2.71:1

2nd

1.55:1

1.55:1

1.55:1

1.54:1

1.54:1

1.54:1

3rd

1.00:1

1.00:1

1.00:1

1.00:1

1.00:1

1.00:1

4th

0.70:1 (OD)

0.70:1 (OD)

0.70:1(OD)

0.70:1 (OD)

0.70:1 (OD)

0.70:1(OD)

Reverse

2.33:1

2.33:1

2.33:1

2.18:1

2.18:1

2.18:1

Converter

2.30:1

2.30:1

2.30:1

2.30:1

2.21:1

1.975:1(5.4L)

1.975:1

(6.8L/7.3L)