Hold on.. have you seen these heads and intake or were you just told they were GT40 parts. Police interceptors got a 5.0HO which has a bigger cam than a regular motor but the heads are exactly the same as what's on a truck motor and the intake is worse(smaller). You need visual verification of the casting numbers or you could be completely wasting your time and money.

 

i seen them held them felt them and thought about cuddling with them looked at the casting marks said gt40 on all the spots

 

Good.. maybe the PO is just "confused" about where they came from then.. it really doesn't matter anyway as long as the parts are in good shape.

 

there in good shape i was just over there taking to him and when i looked at them it was about 5 months ago and he said they were gt40P heads and i may have oer looked the p in excitement, but what would i have to to to make the gt40p heads work if thats what they are?

 

Still have to enlarge the head bolt holes to 1/2" for the 5.8 bolts, also will need a set of headers to clear the angled spark plugs. Ford Racing Headers are supposed to clear, but I had to heat and seriously ding 1 tube to clear #4 plug. Maybe i just got a badly made set, I don't know.

 

im hoping there gt40... but i read some were i think had to get gt40p spacific headers? but i got a good fealing its the true gt40because i eleive the motor is older then a 97?

 

Yeah, you need GT40P specific headers, that's what I bought, didn't work out perfect though, as I said. My original heads were cracked, I got mine off a mid 90's 5.0 Exploder at the u-pull junkyard, don't remember what year though. You can see the p after the GT40 really clearly though, you shouldn't have any problem telling the 2 apart.

 

well ill have to look at them soon he said he would too

 

so i went and looked at the heads again and wow they were clean it looked like a fresh black paint on them they are GT 40P heads and what would i have to do to run these heads?