Yes… but the W2W car in the 6s also lifts the heads and expands radiators on a regular basis. The extra head bolts and the beef (and cubes) of the LSX block will be more than welcome by those seeking ~2k HP such as that car. The rest of us don’t need it at all though. I’d much rather run a L92 block, save a lot of lbs etc. But I don’t give a crap about running 6s either. 
-TJ