I couldn't find just a stock head pipe for my 250 6 cyl. Everybody wants to sell you a whole exhaust or just a muffler or tail pipe. The front pipe just didn't seem to be available and the local muffler shop wanted big bucks . I was searching the auction sites (you know which one)and I found this guy. Turns out his shop is 8 miles from my house. Most of his business is online and not walk-in but he did a bang up job for a good price. He has computer reference cards for a bunch of old cars and trucks and the pipe he made for me fit perfect and cost around $50.
http://www.kepichexhaust.com/servlet/StoreFront I have no interest or connection to Mr. Kepich and I am posting this to aid any members who have had similar problems trying to find these parts.