California DMV engine change rules...?

You can't put an older engine in a newer car in Kalifornia, Nor can you bring in a car that has an older engine in it. I remember looking into this in the 80's when I had a 1980 Mirada with a 69 slant 6 in it. I was told I could not register the car in Kalifornia at the time. So this new law Just tightens the lunacy of anyone wanting to live in Kalifornia.