I love the color combination on this '70. Unfortunately there are some extremely prominent hardware store rivets holding the trim tag on, and oddly enough, while this auction refers to the engine as 'nonoriginal but correct' I found an old link to a 2018 ad that claims it's original.
I guess a late March engine assembly date COULD be correct for a 1st week of April trim tag. Would be nice to see a snapshot of the partial VIN near the oil filter.
Nice car anyway.
Link to 1970 Chevelle SS396 auction
136370F133787