Were there any 440HP vehicles built at the Belivdere IL plant in 1970?

It appears they made C bodies there. Not sure what else. I am looking at an HP block and want to make sure it is legit. VIN # stamp on pan rail is OD22XXXX. Casting date of 10/69 and does have HP stamp on top pad.

70 Road Runner 383-4 4 speed FJ5 & black guts
70 Charger R/T 440-4 4 speed FJ5 & white guts