I don't know about the vette other than SBC. Mine is a 68 4 speed power steering. The headers are full length. Now that I'm responding I get it. Just not enough info. The headers are stainless steel but I do not know the make. I do appreciate the response, I think it's the safe thing to pass on them.
68 Cloned RS/SS w/ all the goodies.
67 Firebird w/ a Chevy 350
67 Camaro 6 cyl. 68,000 original miles
w/ wife & kids w/ the same addiction.