I have at least one set of each type I can sell off. Sorry for the lack of pictures but I am out of town and do not have access to the parts.
All heat exchangers are in good condition. Asking $300 for the 1.7-1.8 and $350 for the 2.0 type.
For those of you do not know the pipe size of all SS HE's are the same. You can install either type on any type IV engine if you have the matching muffler and muffler bracket.
I also have many sets of heat exchanger tin ( J tubes, S branches, warm air elbows, and some warm air guides, and flapper boxes) for 1970-1974 cars. Price is $15 per heater part plus shuipping from 92505 CA
Bruce