That's what I hear. I was really wanting that 416 but they are a lot more expensive than the 408 and I'm having trouble believing that there is that much difference in performance. Where did you get your 408? Did you build it yourself?
Why are they a lot more expensive? The only difference in price is the block. With minimal patience, they come up quite often for 500-800 bucks. Even if you get a 360 block for free, in the whole scheme of things, that isnt much difference. For that small difference, i like the bigger bore and less friction in the bottom end.... plus it aint much, but 8 cubes is 8 cubes. If a 360 block costs you something, it tightens up the small difference even more.