jerrylee01

ok i traded my weld wheels off for a set of 5 lug 17"cobra's and a set of heads . guy told me there gt-40's and there off a 95 cobra motor . but these heads dont say gt-40 on them any where here is all sht i found on heads number wise . and they say gt all over them tho .
wcp
4d12
f3z3aa
3mp
ok can any of you guys tell me what the hell i have here and if can are these heads better then my stock heads on my 85 .he said these heads give me bout extra 50hp or more but i really dont beleive him thats why im turning to you guys if some one can help please do and let me know what i have ok thanks .

Mustangkiler

the f3z tells me there gt 40s

jerrylee01

so they are gt-40's then and if so good cause sounds like maybe i got good deal then lol the valves dont look like there 202's or anything tho im not sure bout fords but maybe like 198's or something i dont know . they look clean as hell can have pics of them soon if wanna check out . and will these give my stock motor more @ss to it with a cam and intake .

Mustangkiler

valves are 1.84 intake and 1.54 exhaust

jerrylee01

ok cool thanks man . ok can you tell me how much better are these then my stock heads will they give me 50 + hp like guy told me .

Mustangkiler

nope, more like 20....a cobra motor with those heads and 1.7s and a different intake makes only 30 more hp

AdderMk2

its F3ZE... and yes, they are gt-40's

if you lay the head flat on its deck, so the spark plugs are facing you... the lower right hand corner should have GT cast into the head, near the headbolt holes

jerrylee01

yup sure does if thinking right might say gt of both corners if not mistaken

AdderMk2

bottom right only if memory serves me... I sold mine 2 months ago

jerrylee01

how much are these worth . how much did u sell your heads for . and these heads alot better then my stockers .