Chevrolet casting numbers
 

This is a site I just found out about for small,and BIG block Chevy casting numbers.It was located in my Parts Consultant monthly training manual from GM.It also has a bunch of other links for car related sites on it.Hope it can help someone decipher all their numbers.I dont know how to do a direct link but,the address is www.MORTEC.COM .

Kendall

Re: Chevrolet casting numbers
 

That's the site most people use. Here is one that I use for big block stuff.
James

http://www.nastyz28.com/bbcmenu.html

Re: Chevrolet casting numbers
 

Both are good references, but be aware both have errors.