98 F150 4.6 heads same as 99-04 PI heads?

[c.moser]

There is a guy local to me selling heads off a 98 F150 4.6 for dirt cheap. He says there are the same as the 99-04 mustang gt PI heads. Is this true? Would I need anything different then what is needed for the mustang PI heads to work on my 98 GT? Thanks

 

[KBExperience]

They should be the same as mustang heads.. Now as far as them being PI heads, I do not know. Different vehicles got PI heads in different years. Hopefully someone else will chime in.

 

[KBExperience]

Alright, with a little research, I found out that f150s didn't get PI heads til 2001.. So if they're off a 98 they are not PI

 

[c.moser]

Thank you very much!