318 race engine 4104230-318 any info. on these engines?

This is an old thread that I just came across. I have one of these engines. I tore it down and it has some very nice heads on it. Casting number 4071051. They also have HP30D cast into them.
I put new lifters, timing chain, and oil pump on it and it is currently on my test stand. I have a video on YouTube showing me starting it for the first time.
Mine was a 1981 smog motor, probably from a police car. It had a factory four barrel carb and manifold on it.
I am tearing it down again in a couple of weeks to re-ring it as it only has 120 lbs of compression. I do have pictures of the crank and heads from the first time I opened it.

As with the one above, no vin number and no "X".