[Curt C.]

Those heads are fine for a mild 302 in my opinion. The E's will flow more and make a little more HP though. GT40Y's are on the small side for 351W's and big cam / breathing 302's. They will fit fine with that manifold. The only thing I am not certain about is the differences between old 302 blocks versus the newer 5.0 stuff. I believe the only real differences are old 302's are non roller cam blocks and have a different firing order; neither of these differences will affect head choice by the way. To be safe, call ford tech and make sure the those heads will bolt on with no issues