Thanks for the response, kingbee. Your '83 with 6 cyl. originally had it. The heat stove bolts to the right of the headpipe and extends all the way to the back of the alternator. It is a light weight metal which acts like a skin covering the exhaust manifold from the headpipe to the #1 cylinder. This is where the carburetor get its hot air when needed.
If you have it, pm the price and shipping to me. My zip code is 35660. Thanks!