I was wondering if the shorty headers that came stock on the 302 mustangs would bolt right up to my 351W with the stock Y pipe.

 

on my 86 5.8 4x4 the rh matched up perfectly.the lh had to be redone.the stang hedders come down farther back than stock f150.need a good shop to bend that pipe(need to clear shaft).my stock manifolds were junk and had the stang ones lying around.