Need help identifying which heads these are.

[Devin]

we were comparing trucks between my 93 and a friends 94 when we discovered that the heads on the 93 lack the gt casting in the passenger head(below the valve cover in the lower front corner) also the the 3 casting lines are not there. The date of manufacturing is 5/93, while the 94 was built one year after 4/94 but has the gt and 3 lines are present on the passenger side head. In the place of the gt casting is a upside down T on the passenger side and 32 or 23 on driver side. Any help in identifying these heads would be greatly appreciated. THANKS

Oh, and for the folks who told me to check my computer, we did that also. hypertech part number 631931. that explains the shifting. thanks again

 

[Devin]

anyone know anything?
i mean, could these still be GT's just w/o the castings or something? I just wanna know whats on my truck.

I mean anyone even have a remote idea?

 

[Devin]

hey man bad news i'm afraid. I went and checked Birds truck and it has the same heads. His is bone stock and that means that the heads are most likely normal 302 or 351 heads the only difference that i know are the head bolt diameter. Unless the engine has had the heads changed they shouldn't be on there, and there is the possibilty of other hidden mods and machine work e.g. ported heads, bored, maybe roller rockers and cam who knows. thought i would let you know.

 

[351WFO]

BY THE WAY THAT LAST POST CAME UP AS FROM YOU. DIDN'T KNOW YOU WERE STILL LOGGED ON AT MY HOUSE.