I have a 2011 gt500 with 12000 miles on it. After the third day of driving it it started misfiring, I took it to a local performance shop. They did a compression test and cylinder 8 failed. They checked my pistons with the little camera and a chunk of my piston in cylinder 8 is gone. I don't have the funds to rebuild the aluminum motor in the car but I have seen some pretty cheap iron short blocks. Has anyone put an iron block in there car and did they have a problems such as the water pump? I'm looking for potential problems with the installation of an iron block. Will my heads bolt on to the block? Any answers will be much appreciated