Forget that you missed the quote and answer to the quote and totally missed the design... pay attention to the design and see the ls , other than the viper head having 5 chambers and the ls having 4, notice the copying of the design with such slight changes as to not be a exact same head minus a chamber
The viper heads design benefited gm.... is what you missed. Whereas as usual mopar dropped the ball, gm doesn't.
Instead of the W tech making it to production with the vipers heads, it gets lost for anything else... Typical mopar screw ups, they should have scrapped the 4.7 and kept the V-10 design scaled it back to 8 and 6 and continued with that.
The hemis are fine as for the heads, problem is the fat they're dragging around and the tuning.
I said it is the same old mopar issues, they worry about 1 thing.
W-2 are there, theyre called 5,7,8,9 now, other than the R9 the others are all W-2 base design
I see n/a W motors in the 8's, thats more than 700hp