[Sonic Blue]

Hi,
I bought a 66 coupe with a 93 Cobra 5.0 in it. It has a tag on the block where it was rebuilt for Ford last year and the part number is for a 1993 Cobra long block.
From what I have read the heads should have 3 vertical lines on them and be stamped GT if they are GT-40 heads (which they should be for a 93 Cobra I think).
My heads have no lines on them and where the GT mark should be is some type of circle mark.
I took the valve covers off & it has Ford Crane roller rockers with 1993 part numbers on them and that number is for 1.7 rollers. Only number I see stamped in the head is 5011.
So, do I have regular 5.0 heads or is there a chance they are GT-40s, even though they are not stamped GT.
How else could I ID the regular heads from the GT-40s?
I am confused.

[NICK09]

IM not to sure.\ but i think the cobra heads were stamped with like F3ze or similiar. And the ones i sold had the three lines and did have GT on them.. HOpe this helps.

[Cobrals1eater]

The GT40 heads had the 3 lines on them.

[Sonic Blue]

I wonder why Ford rebuilt a 93 Cobra motor and didn't use GT-40 heads. Makes me mad because that was one of the selling points of the car for me.
I guess I have a good excuse for a set of Edelbrock or AFR heads now.
Still makes me scratch my head at Ford though.

[Cobrals1eater]

The 93 Cobra came with GT40 heads. I can't recall the part # off hand but back then when all the rage was GT40 heads and intake, if you take a look at the GT40 heads you ordered then compare them to what came on the 93 Cobra, you could tell they were the same.