Winter time question

Hey there...

I got around to taking apart the motor I pulled out of my 68 barracuda convertible(most of you regulars remember helping me with my issues taking out that motor and putting together the new 340, and gettin it installed and running properly)

I have a few books but I am a little confused with the part numbers off the block and the heads that came off the motor that I just dis-assembled...

I am hoping that you guys can let me know the info from the part numbers:

Heads: 4027596
Block: 2465630 - 2
Author: admin