Slant 6 engine number identification.

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.
The VE80865G2 should be the engine number that shows on the rego papers for the car (assuming this engine is in a car). As far as I know, the VE slants were cast in Adelaide Australia.