The BGE heads are not just regular, 6.4 / 392 Apache heads. They are a specific casting meant for the 392 truck engine and the Hellcat engine. I would imagine the valves and springs may be different, but I can't speak for that. One difference for sure is how they are drilled for intake manifolds. The truck version has the regular intake bolt pattern like all other G3s, whereas, the Hellcat version is drilled differently for the big IHI supercharger. As far as I'm concerned, the BGE complete truck heads would be a great head for any build where you plan to use a regular supercharger (not IHI). I believe a change to HP springs and retainers is all that would be needed to have a really nice head. With that said, and depending on your build intent, the Apache heads are killer too!
