Slant 6 engine number identification.

Aball said
I had a question in regards to engine numbers too. I have a slant six I'm going to build up that was pulled from a 67 dart...not sure if it's the original engine. Casting numbers are:
2463430
which says it is from 66 which could make sense. The pad stamp near the alternator reads:
CC 225 06 15
wondering if its been rebuilt and that is a new stamp - it has a partial 'independent cross' logo next to it too?
And the head on it is painted a aqua blue - not the surf blue of the seventies but more of a green blue.

I have an engine here in Australia with similar numbers:

Sky Blue, 3 welsh plug engine block with casting number: 2463430-26
No. stamped under n1 spark plug: CC 225 05 30

There is also a number stamped on the front of the engine casting VE8 - 0865 G2. According to the Chrysler Valiant VE Series Service Manual the VE8 denotes high performance (160hp) engine with Automatic. Nothing noted about the 0865 G2 suffix

I'd like to know its origin.