You guys are funny.
The best seasoning is McCormick's Montreal Seasoning.
I put it on everything from tritip to mushrooms to hamburgers ;-)
Wow, you're right! I totally missed it. That advert is sneaky.
It seems all new until you see the "1996-2000 seasoned OE block" in the details.
And the block has 2-bolt main caps.
EDIT:
on the plus side, Scoggin-Dickey has them for $2300 including shipping. Not $1800, but not bad, and not $3300.
https://sdparts.com/i-19928423-gm-en...IaAkXmEALw_wcB