Specification Information for the Pontiac Fourth Generation GTO

The Pontiac GTO MY04 (Fourth Generation)

Built Between: 1/2004 to 6/2006

Manufacturer Code: 0

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Pontiac LS1 (5.665 Litre 8 Cylinder)

Engine Option: Standard
Engine Type: Vee 8
Capacity: 5665cc (Bore: 99mm x Stroke: 92mm)
               339.9 cubic inches (Bore: 3.861 inches x Stroke: 3.588 inches)
Induction Type: Normally Aspirated
Fuel System: Electronic Sequential Fuel Injection Unleaded Fuel
Ignition System: Coil Pack
Valvetrain: Pushrod Overhead Valve 2 valves per cylinder
Maximum Power: 260 kw (348.66 hp) @ 5200 RPM
Maximum Torque: -375 Nm @ 4000 RPM

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Pontiac 4L60-E (4 Speed Automatic)

Transmission Type: 4 Speed Automatic Transmission
Transmission Option: Standard
Orientation: Longitude
1st Gear Ratio: 3.059 : 1
2nd Gear Ratio: 1.625 : 1
3rd Gear Ratio: 1.000 : 1
4th Gear Ratio: 0.696 : 1
5th Gear Ratio: 0.000 : 1
6th Gear Ratio: 0.000 : 1
7th Gear Ratio: 0.000 : 1
Reverse Ratio: 2.294 : 1

Pontiac Tremec T56 (6 Speed Manual)

Transmission Type: 6 Speed Manual Transmission
Transmission Option: Standard
Orientation: Longitude
1st Gear Ratio: 2.660 : 1
2nd Gear Ratio: 1.780 : 1
3rd Gear Ratio: 1.300 : 1
4th Gear Ratio: 1.000 : 1
5th Gear Ratio: 0.740 : 1
6th Gear Ratio: 0.500 : 1
7th Gear Ratio: 0.000 : 1
Reverse Ratio: 2.900 : 1