2001 Pontiac Grand Am Cracked Head

2001 Pontiac Grand Am

I am looking to purchase a 2001 pontiac grand am for $3000. It has 134,000 miles. (Being a female, I am not familiar with any of the parts on the car). The body is in excellent shape and so is the interior. All electronics work. I drove the car and as far as I can tell, it runs great. Problem: It is at an auto repair shop and the gentleman was honest enough to tell me that the car had a cracked head which he just replace with a brand new one. Will I have future problems with this? I have no idea what that means. He told me that the car has to go through inspection and pass before he can sell it to me. Maybe this is something I shouldn't do. Please advise.

Thanks! Geri