CAMARO Z/28: NEW YORK MOTOR SHOW
7.0-litre Camaro wins the displacement war but can't match the mad Mustang
Shelby GT500 S/C 1000. So GM has gone a slightly different route, stripping out weight, sticking with a normally aspirated engine and going for a more track focused set-up rather than simple horsepower bragging rights.
OK, this is no 911 GT3. 'Stripped back' in the current muscle car arms race means a 7.0-litre LS7 V8 from the Corvette Z06 with 500hp and 470lb ft of torque. But it's a racy engine, with an 11:1 compression ratio, titanium con-rods and intake valves, high-flow heads and dry sump lubrication. Good old fashioned tuning in other words and a classically American approach to it too. If in doubt, make it bigger. The pistons themselves are 104.8mm in diameter with a 101.6mm stroke - a fair amount of mass moving about at 7,100rpm and with the revised intake system capable of ingesting 100 cubic feet (we'll stick with Imperial measurements here!) more air per minute than the LS3 V8 in the 426hp Camaro SS.