WIW Big Block HP manifolds

I’m thinking about going with headers on my Swinger, if I sell these things(B/E body HP exhaust manifolds)what are they worth? I don’t mean how much can I gouge someone for, I mean what’s a good price for buyer and seller?

The heat riser has been removed from the passenger side, I don’t know how much that affects value. I was just going to plug the two holes with some stainless flat head bolts, and never think about it again. I really don’t know much about this big block stuff, any help is appreciated.

image.jpg

image.jpg

image.jpg

image.jpg

image.jpg