Hello tow guys,
I bought these headers some years back from a local speed shop just before Hedman starting selling them coated. They were in a Hedman box with the 69090 (uncoated) part number and a big sticker across the front from
Airborn Coatings. The speed shop had headers coated and kept popular models in stock. A friend bought an identical sent at the same time and they still looked great when he sold his truck a couple of years later.
As for all of the engine/tranny combos they will work with I do not know. My friend had his in a 350/350TH combo, mine was going to go in a 327/PG combo and I was told it would work. Here is a
link to Hedmans page for this model, if that doesn't help you could call their tech line and ask if they will work. I hope that helps.