Correct, CE (counter exchange / chevrolet engine etc) is not the born with engine. This is a (somewhat) date correct replacement engine. Original owner liked to drag race (see pics) and blew the engine. Don't know if it was replaced under warranty or he had to buy it. Chris might know. That, the rims and the hood needing a repaint are the only reasons this is not a "true" survivor. But it's pretty darn original and a triple black car with paper and history.
Oh, and it's not 62k either
/R