ENGINE/HEADS DECODING????????

[Jared1970Chevelle]

where can i go to decode block numbers and head numbers?>... i hear of these online sites but i can never find one!

thanks Jared

[enRo]

http://www.mortec.com/ for GM casting numbers.

[hardline_42]

Is this for the Vortec heads I asked about? Mortec is the place to go. If you have the number handy I can decode it for you, but it's good to know where to find the info when your in a pinch.