Quote:
Originally Posted by JacobP
In the end, the GT2 and GT3 rules obviously allow some extreme "modification". In fact, factories don't start from a production car and then modify it. They build a one-off chassis. Pretty much nothing in it has to be production based, except for matching loosely the architecture and the proportions of the original car. In the engine compartment, very few things besides the engine block are "stock". In case of GT2 Corvette, not even the engine block is "stock" as there is no production Corvette with a 5.5L engine.
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I believe it is the same block, it is just sleeved down to meet the size requirements not a all new race block. And I believe P&M does take a street car shell/frame to build up the C6, they highlighted that on the Inside Corvette show on NatGeo with the GT1 car except they actually had to use the base car's rails since the Z06 ran aluminum.