400 rwhp ls1 dependability

[My68myway]

I'm looking into selling my daily driver for something a little more peppy. Someone I work with is selling a 02 Camaro z28 with 48,000 miles thats putting down a little under 400hp to the wheels and I know that the car has been extremly well taken care of. My question is how dependable is that much power in an ls1, I know that those are really good motors but I'm looking into the longevity of it since I have absolutly no experiance with these motors and this will be my new daily driver I was looking for some input from some of yall that have built them or dealt with them. I really appreciate the input.