1977 camaro engine + Tranny

[lvschevytrucks]

I might be looking to sell a 1977 Chevy 350 4 bolt, and a 400 turbo Tranny
the engine was rebuilt and bored to 60 over, I know it has flat top pistons, and a lot of other goodies, but as I didnt do the work, Im not sure exactly what it has, It was built for a buddy of mines Z-28 and his wife gave him everything he wanted, so after they put a lot of money into this engine, he decieded he wanted a big block for his car, so I purchased it and put it in my old 77 Surburan, and man that thing would scream.....
The block casting #s are 3970010
The head casting #s are 333882
I also have a 400 turbo tranny,
It has a B&M Shift kit, and I think a 3500 antistall converter Im not sure, I know the two of these together would scream
They have aprox 10,000 miles on them and ran great when pulled
These have been sitting in the corner of my garage for 6 yrs and now I know Ill never use them, what might they be worth

Thanks in advance Randy