You might wanna re read what I said. I never said anything about the stock engine. I said the stock crank would take AROUND 500-550rwhp in a manual RWD CAR. That number is alot less through an auto trans and even lower with 4x4.

Just because the crank can take x amount of power doesnt mean the rods wont fail, the rod bolts wont stretch, or the pistons ringland wont fail at that same amount of power.