Itís 500 horses for Fordís GT500 

Itís 500 horses for Fordís GT500

After undergoing final certification testing, the engine powering Fordís most powerful factory-built Mustang to date has been rated at 500 horsepower and 480 lb.-ft. of torque Ė 25 more horsepower than early estimates.

The 5.4-liter, 32-valve V-8 is fitted with a "Roots-type" supercharger providing 9 pounds per square inch of boost. In addition, the unitís four-valve per cylinder heads, piston rings and bearings are also used on the Ford GT engine.

Here are the specs:

5.4-LITER V8
Manufacturing location: Romeo, Michigan
Configuration: Iron Block and Aluminum Heads
Intake manifold: Cast-aluminum with Roots-type supercharger and air-to-water intercooler
Exhaust manifold: Cast iron
Crankshaft: Forged steel
Throttle Body: Dual 60 mm, electronic
Valvetrain: DOHC, 4 valves per cylinder
Valve diameter: Intake: 37.0 mm; Exhaust: 32.0 mm
Pistons: Forged aluminum
Connecting Rods: Cracked forged steel I-beams
Ignition: Coil-on-plug
Bore x stroke: 3.552 x 4.165 in. / 90.2 x 105.8 mm
Displacement: 330 cu. in. / 5,409 cc
Horsepower: 500 hp @ 6,000 rpm (SAE Certified)
Torque: 480 lb.-ft. @ 4,500 rpm (SAE Certified)
Compression ratio: 8.4:1
Redline: 6,250 rpm
Idle Speed in Neutral: 750 rpm
Engine control system: Spanish Oak PCM
Required fuel: Premium
Fuel Injection: Electronic returnless sequential
Oil capacity / type: 6.5 quarts / Motorcraft 5W-50 Full Synthetic Motor Oil
Coolant capacity: 21 quarts
Peak Boost: 9 psi

The 2007 Ford Shelby GT500 will hit dealerships this summer. Pricing for the vehicle will be announced closer to launch.

Meanwhile, you can find top of the line Ford Mustang auto parts at trusted online auto parts stores like Auto Parts Deal.

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