97 S/C Cobra

A buddy of mine has a 97' Cobra. He put a Pro-charger Supercharger on it. However he didnt build up the block. He just did the things need to make it run. IE Plugs, Wires, Pump, Injectors, Fuel Rail. Should he have reinforced the block and the internals? Hes puttin down 440RWHP and 500 at the crank.

id think hed be ok...but i wouldve been more safe than sorry.

Any time you add power, its a good thing to upgrade the internals, but its not alway necessary. He is pushing that engine a little, but from what I have read, it should be OK.