Does anyone know what brand(s) & type of headers will fit a '90 ford van 302, out of the box?

 

I don't really know about your van, but I bought Doug Thorley headers for my '82 F150 with a 351W and they fit like a glove. Even had the clearance right on the bends around the starter. I can replace my starter w/o having to remove headers!!!

Slik

 

Call "JEGS" at 1-(800)345-4545 use part #Dynomax
289-85045. They fit 69-91 Van 302-351W. Price is $86.99