Bib Block exhaust manifolds

[kiles_2001]

I have a question and was wondering if anyone can help me, I bought a 1969 BBC truck, it doesn't have the manifolds on it and I don't want headers, I like the exhaust manifolds from a 1997 big block, I found these on ebay but want to make sure they fit, can anyone tell me if they have used them or if they know that these would work on my truck? I have attached pictures of them, can someone please help ASAP... Id like to buy them before someone else does...