FYI, these are very nice pieces to connect your iron manifolds to header back type exhaust kits. They are only 2" at the manifold which matches the stock manifold size but I like to open up the manifolds a little and have my local muffler shop expand the 2" section of pipe out to almost 2 1/4". It still seals fine to the manifold flange.
Seems fine on my 65 special w/350 . Only thing that I noticed was that I had to be careful with clearance with stock clutch style linkage and it came close enough to Lakewood bell housing edge to require a slight ding . Stock bell housing probably not a problem .
