What would it take to make 1.44 lbs-ft per cid ?

Just watched a Richard Holdener video on a Stock LS 6.0l so basically a 365 and made 515 hp @ 5,900 and 492 lbs-ft (1.34 lbs-ft per cid) with a 238° on 112 cam and headers. Same peak power and rpm as the 371 & 408 and similar torque as the 371. No wonder people like the 6.0ls it's basically working like a 408.

Seems to me if someone made for a stock stroke 360 a well put together cam intake and head package for around 500 hp @ 6000 rpm and 500 lbs-ft it would probably be a decent seller, 408 like power & rpm with a standard 360 short block.