All-New 2000 Yukon and Yukon  XL Powertrains

Vortec 4800 V8 (LR4)

V-Angle (degrees)

90

Bore and Stroke (in/mm)

3.78 x 3.27 / 96.0 x 83.0

Displacement (cu-in/cc)

294/4807

Compression Ratio

9.5:1

Horsepower@ rpm (bhp)

275 @ 5200 rpm

Torque @ rpm (lb-ft)

290 @ 4000 rpm

Block/Head Material

Cast iron/cast aluminum

Ignition System

Composite distributor, platinum-tipped spark plugs,  resistance spark plug wires low-resistances park plug wires

Fuel Delivery

Sequential fuel injection

Maximum Engine Speed

6000 rpm

Emissions Controls

Three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system

Application

Standard on all 1500 Series

4-Spd Electronic Automatic (4L60-E)

Manufacturer

GM Powertrain

Ist Gear

3.06

2nd Gear

1.63

3rd Gear

1.00

4th Gear

0.70

Reverse

2.29

Application

Optional with Vortec 4800 V8

Vortec 6000 V8 (LQ4)

V-Angle (degrees)

90

Bore and Stroke (in/mm)

4.00 x 3.62 / 101.6 x 92.0

Displacement (cu-in/cc)

364/5967

Compression Ratio

9.4:1

Horsepower @ rpm (bhp)

300 @ 4800 rpm

Torque @ rpm (lb-ft)

355 @ 4000 rpm

Block/Head Material

Cast iron/cast iron

Ignition System

Composite distributor,

platinum-tipped spark plugs,

low-resistance

spark plug wires

Fuel Delivery

Sequential fuel injection

Maximum Engine Speed

5600 rpm

Emissions Controls

Three-way catalytic converter,

exhaust gas recirculation,

positive crankcase

ventilation, evaporative

collection system

Application

Standard on 2500 Series

4-Spd Electronic Automatic (4L80-E)

Manufacturer

GM Powertrain

Ist Gear

2.48

2nd Gear

1.48

3rd Gear

1.00

4th Gear

0.75

Reverse

2.08

Application

Optional