'84 Pickup 454 - Heads?

[DriverDown]

Hello all - I'm slowly but surely working on a '70 Chevy, but in the meantime I got this question from my father-in-law... been searching but can't seem to find the answer... he is looking at some heads that supposedly came off of an '84 Chevy pickup 454 and was wondering if they are rectangular port or oval port...? I don't have any numbers ( and guess he hasn't seen any either), but if they well and truly are factory heads, I don't imagine there were both in '84...

Any insight...!?

Thanks...