In the September issue, we strapped a stock LS2 crate engine to our engine dyno and coaxed 472 horsepower and 505 lb-ft. of torque out of it (see "Great Crate" Sept. '06). Impressive numbers, but as ...

Though LS1-equipped '04 Goats were certainly stout, the bar was raised even further when GM rolled out the evolutionary Gen IV LS2 engine for the '05-'06 models. In addition to a host of improvements, ...