YES Another mustang head question!!!!

[satanas]

Can someone tell me whats the difference between a cobra 5.0 heads from a regular 5.0. My cousin parted out his stang and he said the guy(WHO WORKED FOR FORD AT THE TIME HAPPEND TO HAVE A SET OF COBRA HEADS) well he rebuilt his engine put the cobra heads on his car ,but i took the heads off because the engine didn't fit in my trunk ,so when i compared my heads to the so called cobra heads they looked the same.does it have to do with different valves or what??????Not that im complaining because i got the engine for 160 with a performance cam and freshly rebuilt,but just wondering..CAn someone please let me know..Thanks

 

[LiquidGT]

Cobra heads are just GT40 heads, they have 3 verticle bars cast on the front and back and ''GT'' cast by the #1 plug hole. Regular 5.0 heads are E7TE heads.

 

[PUNISHER RACING]

the Cobra or GT40 heads already had the EGR bump removed and work like a ported E7 head

 

[Touring23]

http://www.stangpro.com/html/articles/gt40p_files/gt40p1.htm
http://www.fordmuscle.com/archives/2000/05/heads/

*edit* After I posted this, I was curious about the valve springs. My shop manual says the Cobra GT40s have stronger valve springs than the E7s. Al Kirschenbaum's book may have the part numbers, it's a pretty good book for stuff like this.