68-69 HP B-body exhaust manifolds

These B-body HP manifolds have casting#s
2806900 Right
2843992 Left
I understand they can be used as a lower cost alternative to headers
for an A-body big block swap. That was my plan for them till I got some tti headers.
I haven't gotten around to fitting them in a BB A- body to prove it can be done personally.
If someone that has cares to comment on how well/poor they worked out for them, feel free to share your experience here for anyone thinking about going with these castings.
I will post up some pictures tomorrow during daylight.
They have no cracks nor had any repairs done to them.
$350.00