what engine block do I have

[Peanut74]

Ok, I am currently going in circles trying to figure out what engine block I have in the '67 truck I bought. I have been doing research but keep coming to dead ends. I went back and tripled checked the numbers to make sure I had them right and looked some more and no luck.

Here is what I do know:
-Cast on each side of the block is CFD 207
-Under the alternator is V0430FSD, (“V”=Flint, “0430”= April 30, “FSD”= ?? not on any list) and stamped below it is CF/203864.
-Left side on the bell housing is 140 0207 (There is a blank between the zero's)
-Back of the block on the right side is 109

The cylinder heads are 3782461 which I have found were used 302/327/350 blocks. The motor runs good and I really don't want to open it up to get bore and stroke info. Any help would be appreciated thanks.