The 454 was the pinnacle of the big-block production engines, but Chevy makes some insane crate engines like the ZZ632, which is a naturally-aspirated 1,004 horsepower beast. Displacement is an ...
The marque was looking at introducing an even meaner 454 ci big block V8, named the LS7 ... to mothball any idea of featuring the LS7 in its production models. Rather than hide the engine away forever ...