Decoding Heads......

[Car Guy]

I have some heads lying around and would like to find out exactly what they are. Does anyone know how to or where I could find info to decode head casting numbers.......?


Any help is much appreciated......

Thanks

[Max 93]

http://www.mortec.com/

[Car Guy]

That one didn't come up when I did a Google search.....THANKS!!!


Now does anyone know what they most likely came off of.....?


They are SBC heads and this is what I got,

340292.....70's.......Over the counter, angle plug, 64cc chamber



Thanks