Anyone have any idea what engine this is?

68-GTS said
My guess... 70 and up 318 .
all 273s were Red and all 69 and down 318s were Red / ( Orange Police )
Due to it being a Blue 2bbl ill say 70-up 318

My 69 Coronet had a red 318....
My 69 Fury's original 318 was Blue - maybe because it was a very late build 69 ?? i did find it odd tho.