I need a help. I’ve been recently rebuilding the C4 from 1981, which I want to put in my Mustang together with the 302/5.OL engine. After taking a closer look at it, I realized that I have to replace the valve body. In Poland, where I live, it’s a real effort to get this kind of it. I got one but it’s made for the C5. I wanted to ask you it would work if I put the valve body from the C5 in the C4 ?