[Steeveedee]

Original engine color in '70 was moly orange. That appears to be a replacement, like a GM Target engine. They were painted that color blue before the Chevy engine was called "corporate" and used in all car lines except Cadillac, at least as late as '81. I've installed a bunch of 'em.. If it is a Target engine, you can look on the back of the block on the driver's side. The factory displacement is cast there.