While do like this engine and the improvements that GM made over the previous LFX, I'm still not sure I'm convinced about those new cylinder heads.
Siamesed exhaust ports?
https://youtu.be/D2Gd2IzJaFM?list=PL...A36opSvhJEs1hr
I understand 'why' they did it, easier to slap some turbos on there, even though they never mention that in this video. But I can't help but think those heads would flow a whole lot better with some real, individual exhaust ports.
On the plus side, it's going to be ridiculously easy to make a header for 'em! If it's even needed.