What Headers to buy

[LT7A]

I would read some of the build threads and see if there is a similar truck to yours and look at what they used. Rusty is one that had vortec heads for a while. Lots of pages to that one. Have you done a search? Are the exhaust ports in the same place so that headers are interchangeable between vortec and earlier heads? I know that's not the case with intake manifolds, but I don't know about the exhaust. Stock height truck versus lowered might make a difference too, in what you want to buy.