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Specifications
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BODY
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GT
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Unitized welded steel body, aluminum hood
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V-6
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Unitized welded steel body, aluminum hood
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POWERTRAIN AND CHASSIS
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Engine
Type
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GT
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4.6L 90-degree V8; Aluminum block and heads
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V-6
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4.0L 60-degree V6; Iron block, aluminum head
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Bore x stroke
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GT
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3.55 x 3.54/90.2 x 90.0 mm
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V-6
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3.95 x 3.32/100.4 x 84.4 mm
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Displacement
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GT
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281 cu in / 4,606 cc
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V-6
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245 cu in / 4,009 cc
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Compression Ratio
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GT
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9.8:1
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V-6
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9.7:1
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Horsepower
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GT
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300 @ 5,750 rpm
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V-6
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210 @ 5,250 rpm
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Torque
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GT
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320 lb-ft @ 4,500 rpm
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V-6
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240 lb-ft @ 3,500 rpm
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Redline
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GT
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6,250 rpm
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V-6
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6,100 rpm
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Throttle body
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GT
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55 mm dual-bore electronic
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V-6
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65 mm single-bore electronic
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Cylinder head gasket
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GT
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Multi-layer steel
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V-6
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Multi-layer steel
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Valvetrain
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GT
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SOHC, 3 valves per cylinder, variable camshaft timing
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V-6
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SOHC, 2 valves per cylinder
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Valve diameter
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GT
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Intake: 33.8 mm
Exhaust: 37.5 mm
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V-6
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Intake: 46.0 mm
Exhaust: 39.0mm
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Pistons
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GT
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Hypereutectic aluminum
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V-6
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Hypereutectic aluminum
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Connecting rods
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GT
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Cracked powdered metal with floating wristpins
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V-6
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Forged steel
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Ignition
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GT
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Coil-on-plug, high-thread-insert spark plugs
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V-6
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Distributorless with coil pack
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Knock detection
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GT
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Dual knock sensors
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V-6
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Single knock sensor
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Intake
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GT
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Composite shell-welded single runner, charge motion control valves
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V-6
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Composite shell-welded with internal runner pack
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Accessory drive
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GT
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One-way clutch alternator
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V-6
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Asymmetric belt tensioner
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Oil pump
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GT
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High-flow gerotor
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V-6
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Gerotor
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Recommended fuel
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GT
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87 octane
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V-6
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87 octane
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Fuel injection
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GT
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Electronic returnless sequential
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V-6
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Electronic returnless sequential
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Oil capacity
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GT
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6.0 qts
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V-6
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5.0 qts
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Fuel capacity
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GT
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16.0 gal
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V-6
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16.0 gal
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Fuel economy (city/hwy)
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GT
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Manual: 17/25 mpg / Automatic: 18/23 mpg
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V-6
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Manual: 19/28 mpg / Automatic: 19/25 mpg
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Drivetrain
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Layout
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GT
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Real-wheel-drive
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V-6
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Rear-wheel-drive
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Driveshaft
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GT
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Two-piece aluminum
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V-6
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Slip-in-tube single-piece
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Rear axle
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GT
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8.8-in
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V-6
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7.5-in
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Transmission
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Standard
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GT
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5-speed manual
(Tremec 3650)
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V-6
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5-speed manual
(Tremec T-5)
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Gear ratios:
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GT
(Treme 3650)
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V-6
(Tremec T-5)
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I
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3.34:1
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3.75:1
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II
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2.00:1
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2.19:1
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III
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1.32:1
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1.41.1
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IV
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1.00:1
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1.00:1
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V
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0.68:1
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0.72:1
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Reverse
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3.38:1
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3:15:1
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Final drive
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3.55:1
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3.31:1
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Optional
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GT
5-speed automatic (5R55S)
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V-6
5-speed automatic (5R55S)
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I
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3.25:1
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3.25:1
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II
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2.44:1
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2.44:1
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III
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1.55:1
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1.55.1
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IV
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1.00:1
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1.00:1
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V
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0.75:1
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0.75.1
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Reverse
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3.07:1
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3:07:1
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Final drive
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3.31:1
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3.31:1
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SUSPENSION
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Front
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GT
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Reverse-L independent MacPherson strut, 34 mm tubular stabilizer bar
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V-6
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Reverse-L independent MacPherson strut,
28.6 mm tubular stabilizer bar
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Rear
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GT
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Three-link solid axle with coil springs, Panhard rod,
20 mm solid stabilizer bar
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V-6
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Three-link solid axle with coil springs,
Panhard rod
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STEERING
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