I didn't get the b body ttis on ebay but I did find these ancient Doug's headers a while back. I believe these are either b body or a discontinued a body header. The a body headers Dougs offers now don't fit 727 transmissions, as can be seen in the photos I'm using a 727. I like the plug wire clearance and these tuck up above the steering like ttis do. I had to add some clearance on one tube at the idler arm, but nothing big. These were very cheap and Jet Hot coated to boot, although there are some dings and chips, the only number on these was D-51.
Bob