Since 1955, NHRA Stock Eliminator drag racing competition has been a straight-line proving ground for the quickest muscle cars to come out of Detroit. Why? Within Stock Eliminator, there are many classes, all defined by the ratio of vehicle shipping weight and the assigned horsepower factor. Due to these tight set of rules and competition, Stock Eliminator is the ultimate test for factory muscle cars.
Chevrolet has long enjoyed a dominant position in this drag racing competition with a bunch of models including the ‘Fuelie’ ’57 Bel Air and the ’62 409 Impala. But none of those cars have ever dominated both the track and muscle car fans like the legendary COPO (Central Office Production Order) Camaros produced in 1969… well, it’s now back.
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At the 2011 SEMA Show in Las Vegas, Chevrolet unveiled its new COPO Camaro Concept, designed to the specifications for Stock Eliminator drag racing competition.
“The COPO Camaro is a proof of concept for what a Chevrolet Stock Eliminator entry could look like,” said Jim Campbell, GM U.S. vice president of Performance Vehicles and Motorsports. “And it is a clear indication that Chevrolet intends to homologate the Camaro for sportsman drag racing.”
The Chevrolet COPO Concept has been designed to accommodate more than one engine option including the naturally aspirated 427 engine (7.0L) – the same displacement as the original 1969 COPO Camaros – and a supercharged 327 (5.3L) engine.
Check out a video and all the specs after the jump.
The basic content for the COPO Camaro Concept includes:
- Provisions for two engine configurations (see below for details)
- Provisions for a Powerglide two-speed automatic transmission, a three-speed automatic or a five-speed manual
- High-rise cowl-induction hood
- Custom Aeromotive fuel system, with a fuel cell and integral high-pressure fuel pump
- Full, chrome moly roll cage
- Coil-over front suspension with Strange Engineering adjustable struts
- Custom rear suspension, based on NHRA requirements, with Strange Engineering shocks, Panhard bar and stabilizer bar
- Strange Engineering S-9 solid rear axle with aluminum third member, 35-spline spool, 35-spline axles and 4.10 gear set
- Lightweight, COPO-specific racing wheels
- 29×9-inch rear radial racing slicks and 4.5x28x15-inch front tires
- Manual steering system
- Strange Engineering lightweight racing brakes system with standard line lock.
|Suggested class||A Stock||AA Stock|
|Cubic inches||427(7.0L)||327 (5.3L)|
|Crank||forged steel||forged steel|
|Pistons||forged dome||forged dome|
|Rocker arms||LS7 1.8-ratio||LS7 1.8-ratio|
|Camshaft type||hydraulic roller||hydraulic roller|
|Cam duration (deg.)||233/276 @ .50-in.||244/255 @ .50-in.|
|Cam lift (inch)||.595||.650|
The concept vehicle is powered by a prototype version of the supercharged 327 engine, featuring an LSX cylinder block.
– By: Omar Rana