Vortec sizes question

[AXXE]

Are all Vortec heads the same combustion chamber size? Are there specific casting numbers to look for. What are the best years to use?

 

[jwaller]

all have the same chamber size and all are just as good as the first....96 and up...

 

[Tooky]

What is the fascination with the "772"s then?

 

[MikeRenz]

772s was the first casting of this genre of vortec heads...thats why everyone has that embedded in their head.

 

[BigAl...]

Has anyone actually cc'd a 772 head? If so what volume is the 772

TIA
BigAl...