This is proving harder to figure out than expected.
Will standard Tri-Y headers from Scott Drake or Patriot for a 302 fit the 351 ok?
I saw that Doug Thorley makes a set specifically for 67-70 Mustangs with automatic transmissions getting a 351W engine swap, but those are backordered until April and when I reached out to them about my specific application, they said,
Thank you for your interest in Doug Thorley Headers! Unfortunately, based on the information given, we do not have any headers available for your year, make, and model. Since our production demand is very high at this time, we are unfortunately also unable to make any custom headers. We apologize for any inconvenience this may cause and we wish you the best of luck in your header search!
So I’m not really sure which direction to go except to start purchasing ones that look promising and deal with the trial and error of making them fit, possibly having to return them, etc. Anyone know of a set that will definitely fit with a 351W, an AOD transmission, and factory power steering?