The 340 a-body headpipes are some of the most critical fitting headpipes to manufacture and to be consistant from one car to the next.This was a nightmare for the vendors that originally built these pipes for Chrysler as some of your pictured samples demonstrate with the nos parts. Issues included starter , pitman arm and torsion bar clearance. Most of our customers in the past 15 years have appreciated fit and flow
of the two piece design over the possible no-fit and severe restricted smashed pipes. We do however offer by special order the one piece headpipes as the originals for those that would like these fit/flow issues built into their pipes.
The left side was originally a 2" flange pipe that was slid into a 2.25" intermediate pipe with a weld at that connection. The right side was a full one piece 2.25" headpipe. Both sides had severely smashed and flattened sections installed for clearance issues and were of cold rolled steel material.