this would be a fair argument if both Ford and Chevy had near size engines.
but you are beating your chests like the 5.7L is such a bad as mofo yet look at the actual numbers
4.6L 3V is 281 cubic inches producing 300hp 320tq
LS1 all-aluminum 5.7 L (346 in³) pushrod engine and was rated between 305 - 350 hp and 335-375 ft·lbf of torque
thats 67ci or 1.1Liters over the 4.6 motor and thats all it made LOL..
As far as the LSx being superior, not according to
Wards 10 best engines.
Fords 4.6L v8 won this award in 2005 (5th), 2006 (5th) 2005 (6th) 2008 (4th)
Fords 5.7L took 4th in 1997 (2nd) 1998 (3rd) 2000 (5th), 2001 (5th) 2002 (4th)
yet the LS1 only won in 1998 and 1999 and the LT1 and LS2 never made it on the list.
the LSx is a Large cubic inch engine making good hp, yet ford has 5.4L making nearly the same N/A hp as the new 6.0L LS3 and it's still short a few cubes
Boss 315 4-valve DOHC 5.4 L V8, 422 hp @ 6500 rpm, 406.5 lb·ft @ 4750 rpm
Then we can have a serious argument.