If you're going to rebuild, do it all at once

 

thanks for the advice guys.....

 

my package came yesterday and they sure did beat it up on the way here....the piece on the head hwere the hose goes from the head to the radiator broke....does anyone know if the one off of my d15 head will fit the z6 head?....

 

Most parts on 4G D series engines are interchangeable. I'm 90% sure it will work.