What heads do i really have on my 350

[fredsknekt]

Hi there.
I just bout my first 1975 Chevy Nova now, It's a 350 SB and with 400 heads flattened and drilledas the seller told me.
The Engine runns great but i really want to se that i'ts as he told me.
How can i see on the heads that it is a pair of 400 heads.

 

[zora]

the casting numbers will tell you what you have, see the link below

http://outintheshop.com/faq/casting/heads.html