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LSA E-Rod powered Superformance Grand Sport Coupe – Click above for high-res image gallery

General Motors has grown its E-Rod family by two, adding a 505-horsepower 7.0-liter LS7 and a 556-horsepower 6.2-liter LSA to its line of emissions-friendly V8s. The General chose to show off the new forced-induction engine by plopping the mill in a Superformance Grand Sport replica. With a feathery light curb weight of just 2,500 pounds and a potent 551 pound-feet of torque on tap, this machine should be an absolute tarmac terror. Behind that supercharged small block sits a Tremec six-speed manual transmission and a four-wheel disc brake system designed to bring the whole party to a stop in a hurry.

GM says that it is currently working closely with the California Air Resources Board to ensure that the E-Rod LSA can be used in pre-OBD-II vehicles, allowing specially constructed cars like the Superformance Grand Sport to receive CARB certification. Hit the jump for the full press blast.

  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA front 3/4
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA front
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA front 3/4
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA side
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA rear 3/4
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA rear 3/4
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA rear
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA rear detail
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA rear fender detail
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA engine
  • Superformance Chevrolet Corvette Grand Sport E-Rod LSA engine

Photos copyright ©2010 Zach Bowman / AOL

[Source: General Motors]

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LAS VEGAS – Under the leadership of the legendary Zora Arkus-Duntov, the Corvette Grand Sports took the racing world by storm in 1963. They gave Cobra drivers fits, with powerful and exotic engines created inside Chevrolet, such as an all-aluminum 377-cubic-inch powerplant. The special engines delivered stunning speed in the lightweight, purpose-built chassis.

Only five Grand Sport race cars were built, but their legacy lives on in countless replicas created in the decades since the originals rolled into the paddock for the last time. The most authentic Grand Sport recreation models – including coupe and roadster versions – are the GM Official Licensed Products examples built by Superformance LLC (www.superformance.com), which offers a variety of GM Performance Parts (GMPP) crate engines in them.

At the 2010 SEMA Show, GM Performance Parts (GMPP) introduced the new E-ROD LSA crate engine package (part number 19257460) in a Superformance Corvette Grand Sport coupe. Packing 556 supercharged horsepower, the E-ROD LSA exemplifies the extreme performance that is available with the E-ROD portfolio.

The E-ROD LSA system will be available after the first quarter of 2011. GMPP is working with the California Air Resources Board (CARB) to secure an Executive Order to allow the E-ROD LSA to be used in pre-OBD-II vehicles (1995 and earlier). GMPP engineers are working with CARB to develop a process to have E-ROD systems, including the E-ROD LSA, approved for specially constructed vehicles – such as the Superformance Grand Sport – in California.

"The Grand Sport Corvette is such an iconic vehicle, that it's great to see Superformance bring back this classic as a kit car," said Dr. Jamie Meyer, product integration manager for GM Performance Parts. "It offers the same styling and raw performance feeling as the original, and when outfitted with an E-ROD engine, the end consumer gets a much more modern ride. The performance of this car is amazing."

Indeed, with a curb weight of about 2,500 pounds, the E-ROD LSA's 556 horsepower gives the car a power-to-weight ratio of only 4.5:1 – or, 1 horsepower for every 4.5 pounds of mass. That's better than Ferrari 599 GTO's 5.3:1 ratio.

The E-ROD LSA brings a modern level of driving ease and comfort to the classic Grand Sport design. That's complemented with other amenities including air conditioning, leather upholstery and a smooth-shifting Tremec six-speed manual transmission.

On the outside, the Grand Sport re-creation wears historically inspired Admiral Blue paint and bright white stripes, along with wheels based on the design of the original Grand Sport race cars. Also authentic to the originals is the set of side exhausts, which emit a suitable rumble for this barely tamed street car.

Working with Superformance LLC and Duntov Motor Company, the replica parts have been painstakingly reproduced including the chassis, body parts and all accessories needed to replicate the original Grand Sports theme. With the support of GM Performance Parts and GM Official Licensed Products, the coupe and roadster editions are offered in street and racing versions. Each GS is available as a complete TKM (turn key minus) vehicle, awaiting the customer's choice of engine and transmission.

Vehicle highlights include:
* GMPP E-ROD LSA supercharged 6.2L engine rated at 556 hp and 551 lb-ft of torque
* Tremec six-speed manual transmission
* Custom rear axle housing, with Dana 3.36:1 gears
* Ceramic-coated custom headers and side pipes
* Four-wheel disc brake system, with four-piston calipers at all corners
* Period-correct Grand Sport racing wheels
* Exterior paint in Admiral Blue, with bright white stripes
* GM gauge cluster with 200-mph speedometer
* Leather-appointed seating.

The Grand Sport Replica and its 556-hp supercharged crate engine deliver the hard-driving excitement of the original race cars, with all of the performance-minded, hand-built enthusiasm that created them in the first place.

Zora would be proud.

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    • 1 Second Ago
      • 2 Years Ago
      I found all my information on superformance.com and gave them a call and they sent me a ton of information on it and were very helpful. I talk to Ashton, very knowledgeable on everything. I was lucky enough to stop by their shop in Irvine, California. You cannot beat the amazing quality. Companys like Factory Five do not compare. Also they have a facebook page.
      • 4 Years Ago
      A true beauty of a car from a true replica builder. Superformance is on a whole other level than places like Factory Five, in that Superformance builds true replicas and not kits. I don't know if I would want a LSA in a Grand Sport replica, or stick with the LS3, but either way it's an amazing car.
      • 4 Years Ago
      haha, the lucky buggers building these. I bet the execs hear from this for months afterward

      "buh buh buh we did it! they liked it! we can make more right!"
      "no, dammit no"
      "aww, but it's shiny and fast and efficient and and and and"
      "NO! you ask again and there will be no more SEMA shows, ever!"
      • 4 Years Ago
      It is inferior to what you see in Europe.
        • 4 Years Ago
        They have many replicas of 60's Corvette racers in Europe do they?
        • 4 Years Ago
        I agree. The euro-spec corvettes are much better than this.
      • 4 Years Ago
      As I understand it the Superformance Grand Sports are licensed by GM as official "continuation series" cars too. A nice bonus which may add to their value vs other GS replicas.

      I agree with others too, who applaud GM (and Ford, for that matter) for making emissions-compliant crate motors for the hot rod crowd. It's definitely the way forward.
      • 4 Years Ago
      I just realized I need to rob a bank. Who's in?
      • 4 Years Ago
      I'd take this over any modern Corvette.
      • 4 Years Ago
      Two words. Do. Want. Both the car (can I get a split window?), and the engine.

      It's great that GM Performace is working with the California Air Resources Board to try and get this LS family engine certified for use in pre '95 automobiles in CA. This will help to open up more legal engine options for people who don't want those 80's & 90's engines with all the emissions equipment that are needed to pass smog and still want to make some power.
      • 4 Years Ago
      I'm actually very impressed with GM's family of E-Rod crate engines. It's a great idea.
      • 4 Years Ago
      Hi how do you find out about pricing?
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