Are C7AE-A heads any good?I know they are not hardened seats,but how are they flow- wise?

 

We had discussed the C7 heads a while back, and I even took pictures of the C7 versus a set of C8AE-H's I had. The chamber is slightly different, but I couldn't tell any difference between the C7 and the C8's (and D2s) in terms of intake or exhaust ports.

So, if you're comparing them against other heads, use the C8/D2 heads as a guide.