I have a set of headers that were in a 79 f250 with the 400 and they fit.Swapped motors to what i think is a 77 highboy and they dont fit so i need help finding headers. i took a set off the highboy so i know they make them just need help finding the right ones.

 

Update on the highboy. Its a 75 that has had a little modification the fit the 400. so i need headers to fit that frame and my motor

 

You'll need headers specifically for the '77 highboy as it's the only HB to come factory equipped with a 351/400.

The '67-'76 highboys only came equipped with the 360FE (or 300-6).

 

Thanks for the info man. are they the same as the 77 f250 headers or is the highboy different.

 

'77 is the split year for the highboy, it only had a 6 month production run, the midyear '77.5's are considerd lowboys.

Anything before serial #Y20,001 is a HB, after that is a lowboy, so yes, the headers will be different in the same '77 model year for the F250 4x4.

 

Just to make this easy do you have a link for any or a good place to look

 

Not sure, i only work with FE's, you could ask "orangebeast" or "lostinfords" where the got their HB 351/400 headers (link below).


https://www.ford-trucks.com/forums/1...0-headers.html