327 Corvette headers ?

I have a set of OEM headers I removed from my hotrod. It is a 327 and the guy I bought the car from said they were corvette headers. The casting numbers are as follows

3747042
RH 48

3 56183A
H 23

Both have a large GM embossed next to the numbers

Are these corvette headers , and if so do they have any value to someone who is doing a restoration ? I have no use for them but would hate to throw them away if they would be of value for someone. Any info appreciated

:)

To my knowledge, I don't believe any 327's came with headers; rather, they came with exhaust manifolds. You might pose this question on one of the Corvette forums at www.Chevytalk.com if you cannot get an answer here.