Reader  Email 800.59.ROUSH 2008 ROUSH P-51A™ Mustang Home > Vehicles > Overview The ROUSH Performance P-51A™ Mustang is easily the highest horsepower Mustang that the company has ever produced, and represents the first time that internal engine components have been upgraded by ROUSH technicians in their Livonia, Mich., facility. It was determined that the only way to give the P-51A™ moniker its due was to completely break into the 4.6L, 3V and rebuild several of the functional internal components, which include a forged steel eight-bolt crankshaft, forged aluminum pistons with increased dish to lower the compression from 9:8 to 8:6, and forged steel H-Beam connecting rods. These upgraded parts were necessary for the stock Ford engine (which comes with 300 horsepower from the factory) to be able to withstand the additional power generated from the newest iteration of the legendary ROUSHcharger™ supercharger system.   Additional alterations include a custom aluminum upper and lower intake manifold for the high capacity air-to-water intercooler and ROUSHcharger™. ROUSH installs a custom fuel rail and high-flow fuel injectors, a high-flow capacity fuel system, as well as a dual electronic throttle body.   The new ROUSH P-51A™ engine has a preliminary rating of at least 510 horsepower and 510 lb.-ft. torque. It is anticipated that final figures may even be slightly higher than this when final testing and calibration is approved by the ROUSH engineering staff.   The changes to the ROUSH P-51A™ don't end under the hood. A ROUSH aerobody kit will be installed, which includes a front fascia, chin spoiler, hood scoop and rear spoiler. The ROUSH black high-flow grill is added along with cooling side shields to give the car the aggressive look it needs while stalking the streets.   Internally the car will come with ROUSH sport leather seating and custom floor mats, both with an embroidered P-51A™ emblem. The white face gauges and billet aluminum pedals will get a lot of use as the driver bangs through the gears with the ROUSH short throw shift lever and retro black ball.   For those who look behind the 18-inch ROUSH forged five-spoke wheels will see the vaunted Stage 3 suspension underneath this vehicle. Designed to handle even the tightest twists and turns, this suspension includes specially-engineered and tuned front struts, rear shocks, front and rear springs, front and rear sway bars and jounce bumpers. The front brakes are also upgraded with 14-inch front two-piece rotors and four-piston calipers. Each component was specifically engineered so that ride comfort was not compromised at the expense of the tremendous gains in performance.   << Hide >> More Component Photos > Next Core Components - $32,103 + S&H ROUSHcharged™ P-51 4.6L powertrain system (Additional components include TVS Technology ROUSHcharger™, intake manifolds, intercooler & radiator, cold air induction system, carbon fiber cold air tube, Forged Aluminum Pistons, Forged Steel H-Beam Connecting Rods, Forged Steel Crankshaft, Unique high flow fuel injectors (~52lb/hr), Unique fueld rail, Dual 60mm eletronic throttle body, Upgraded fueld system, aluminum Flywheel, Upgraded Clutch, and ROUSH calibrated ECM) - Produces 510hp / 510lb-ft ROUSH Four Piece Aerobody Kit (Front Fascia, Front Chin Spoiler, Hood Scoop, and Rear Wing) ROUSH Rear Quarter Window Louvers ROUSH Black Bar High Flow Front Grille Lower Valance Fog Lamps ROUSH P-51A Hood Striping ROUSH Front Windshield Banner and ROUSHCHARGED Hood Scoop decals ROUSH P-51A Fender Badges ROUSH P-51A Rear Decklid Badge ROUSH Radiator Cooling Shields ROUSH 18-Inch Forged Chrome Wheels with Ultra-High Performance Tires and Locking Lug Nuts ROUSH Front Brake Kit w/ 14-Inch Two-Piece Slotted Rotors and 4-Piston Calipers and Slotted Rear Rotors with Red Calipers ROUSH Stage 3 Suspension System (includes: Front Struts, Rear Shocks, Front and Rear Springs, Front Sway Bar and Rear Sway Bar, and Pinion Snubbers) ROUSH Wheel Hop Reduction Kit ROUSH Short Throw Shifter with Retro Shift Lever with Black Shifter Ball ROUSH P-51A Sports Leather Seating with Suede Inserts ROUSH Four Piece Performance Pedal Kit (Accelerator, Brake, Clutch, and Dead Pedal) ROUSH White Face Electro Luminescent Gauge Cluster ROUSH P-51A Embroidered Fllor Mats ROUSH P-51A Serialized Badge and P-51 Signature Badge ROUSH Billet Underhood Caps (Radiator, Oil, and Strut Tower Caps) ROUSH Door Sill Plates ROUSH Carbon Fiber Interior Dash Trim Optional Components Trunk Mounted Tool Kit - $355 ROUSH Exhaust (Dealer Installed - shipped in trunk) - $675 Dealer Locator Alabama Alaska Alberta Arizona Arkansas Baden-Württemberg British Columbia California Colorado Connecticut Delaware District of Columbia Essex Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Manitoba Maryland Massachusetts Mexico, D.F. 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