I am sure this has been beat up on the forums before. But I am in the process of doing a complete rebuild on a 93 f350. motor and tranny. The 460 heads I have are broken on the castings where the manifolds bolt to the heads. I have a good set of 460 heads off of a 89 460 efi. The heads will interchange correct? I can just put the 89 on heads on the 93? They look to be the same other than valve size.

 

I'm pretty sure efi heads are efi heads for the 460. But maybe a member with more big block knowledge will post for you.

 

Later model efi heads are better than the early heads, I'm not sure what year the better heads debuted without searching myself ... plenty of people here know the info off the top of their heads so I'm sure they'll chime in. I'd get the better flowing set if you can find them cheap.

 

EFI heads '88-'92 & '93-'97