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2006 Chevrolet Silverado 427 Concept Pictures, Specifications, Information

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specifications information


General Information
Vehicle Type: 2-door truck, concept car
Price: $---,---
Miles Per Gallon: --/-- mpg
Drivetrain
Configuration Front Engine/RWD
Engine: V8
Displacement: 7010 cc
Horsepower: 505 bhp @ 6300 rpm
Torque: 470 lb-ft @ 4800 rpm
Max RPM: 7000 rpm
Transmission: 6-Speed Manual
Dimensions
Weight: ---- lbs
Height: --.- in
Length: ---.- in
Width: --.- in
Wheelbase: 119.0 in
Track: f: --.- / r: --.- in
Performance
0-60 mph: -.- sec
0-100 mph: --.- sec
Quarter Mile: --.- sec @ --- mph
Top Speed: --- mph
Lateral Acceleration: .--g
Braking, 60-0 mph: --- ft
Slalom Speed: --.- mph
Nürburgring Lap Time: --.- minutes
During the heyday of the muscle car, three digits struck fear into the hearts of challengers who found themselves unlucky enough to sidle up next to a Chevy wearing the badge 427. The badge is back on the Silverado 427 – a concept vehicle that demonstrates a tangible extension of the new Silverado’s performance parameters.

The Silverado 427 is powered by GM Powertrain’s 7.0-liter LS7, the same Gen IV small-block V-8 that is the center of power in the Corvette Z06 and available as a “crate engine” package from GM Performance Parts. Its cubic-inch displacement is 427. A six-speed manual transmission backs the engine, providing the driver with full control of the vehicle’s substantial capability.

“There’s hardly a more legendary – or menacing, depending on your point of view – moniker in the world of performance than ‘427’,” said John Cafaro, chief designer for full-size trucks. “The Silverado 427 concept delivers on the expectation of that revered badge with performance that equals or surpasses the original.”

More than just a pickup with a more powerful engine, the Silverado 427 is a total performance package, with a lowered suspension that delivers racecar-like reflexes and an exterior styling package that is simultaneously aggressive and understated.

“The regular cab, short box body style of the Silverado 427 was a deliberate choice, because it represents the essence of elemental performance: filling the smallest, nimblest body and chassis with the most powerful engine,” said Cafaro. “Indeed, all elements of this concept are simple and minimalist; it is equipped only with the components necessary to convey its performance.”

This means a traditional rear-drive layout for the Silverado 427. There is no all-wheel drive or electronic traction enhancers. Luxury features also were kept to a minimum, as the vehicle’s focus was kept squarely on performance.

Drivetrain

Fitting the LS7 engine into the Silverado’s engine bay was relatively simple, because it is based on the same Gen IV small-block V-8 family as the Silverado’s regular production V-8 engines – and is available as a “crate engine” package from GM Performance Parts. A custom-fabricated air intake system was designed for the Silverado 427, adding not only a necessary air path for the engine but also some underhood distinction.

The LS7 is rated at 505 horsepower and 470 lb.-ft. of torque, and is built with lightweight reciprocating assembly components and other design features that have their roots in the Corvette racing program. In fact, the LS7 uses a racing-style dry sump oiling system that ensures optimal engine oiling during all driving and cornering maneuvers. Engineers had to make room under the Silverado’s hood for the LS7’s external oil supply tank.

The Silverado 427’s LS7 engine is backed by a Tremec heavy-duty six-speed manual transmission, which transfers torque to GM’s automatic locking rear axle. It’s fitted with 3.73 gears, which multiplies the torque of the LS7 to provide muscle car-challenging acceleration. The six-speed transmission has a steep, 3.01:1 first gear, which contributes to a tremendous performance at launch, while two overdrive gears balance the Silverado 427’s performance with fuel economy that first-generation 427 drivers could only dream of.

Complementing the drivetrain is a set of 22 x 10-inch five-spoke aluminum wheels mounted to wide Pirelli Scorpion 305/40ZR22 performance tires, which do their best to maintain adherence to the Tarmac as the LS7’s revs climb. The tires are the contact points for a performance-tuned suspension that used Ground Force custom front and rear lowering springs, front struts and rear shocks. The lowered suspension helps the Silverado 427 corner flatter and with more precision, while also giving the vehicle a “just right” performance stance. A set of Baer disc brakes, with six-piston calipers and 16-inch-diameter rotors, provides the stopping force for the vehicle.

Design

Complementing the Silverado 427’s performance is a thoughtfully designed exterior that deftly incorporates high-performance styling cues in a restrained manner, giving the truck a look that is unmistakably aggressive yet respectful of its minimalist performance ethic. The design incorporates numerous changes compared with production Silverado models, including new front and rear fascias, hood, cowl, tailgate, tonneau and body-side cladding.

Many of the design elements are subtle, such as the tight body cladding – which incorporate polished billet side-exit exhaust outlets – and shaved door handles. Other elements immediately draw the eye; the most prominent of these being the dramatic hood scoop. It was designed as a contemporary interpretation of the famous Corvette “Stinger” hood scoop, which identified 427-powered Corvettes of the mid-1960s. And like the original Stinger scoop, the Silverado 427’s hood scoop is emblazoned with the “427” numbers and a complementing accent color over the Laser Blue exterior color.

The grille, fascias and tailgate all are designed with a performance-oriented, streamlined appearance. The doors are opened via an ITW Active Touch.

Inside, the Silverado 427 is outfitted with Corvette seats that have been covered with custom Soliel Keisel leather upholstery and equipped with three-point racing-style harnesses. The perforated, black leather seat coverings have blue inserts. Between the seats is a custom center console that incorporates the shifter and houses a set of billet-face instruments. Other details include a revised instrument panel, with billet inserts and trim.

photos
Image Credits: Chevrolet
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