Where do these bolts go?

i didn't think so, but then again i'm more savvy on the 69 and down stuff.

what size is the bolt head?

i'll see if i can match it up to some of the stuff that i've got labeled here.
1/2". At this point I'm wondering if these bolts aren't for this car. I'll toss them into my surplus Mopar hardware bin. Good thing I painted it nice :)