yoou get this information from the block casting number (under starter).
But the K-codes didn't use K-code blocks, so to identify those you'll have to check on your heads (remove valve cover)

Kalli

 

Ok, thanks kalli and thanks for the site Aussie.

 

actually I'm wrong. you won't find info on A or C code on the block either if i'm correct.

You can idenmtify the block (here's a list)
http://raceabilene.com/kelly/hotrod/engine2.html

and here's info on where to find the casting number
http://www.aacncclub.com/FORD_BLOCK_...l#302fordblock

but the difference between A code and C code is more or less only 4V intake and 2V intake. maybe different compressions as well.

Sorry for the misinformation
casting will tell you what block. But it won't tell you if it's an A,C or K code