Yeah the Chevy marketing guys really didn't want to tell anyone it was a 402 for some reason. They pitched it as the 396 or the 400 even though it wasn't either. I understand the 396 thing since it was basically the same engine and was a carryover but the 400 badge was confusing since they had a SB 400. They must have thought it was a good idea at the time but 50 years later it is confusing and odd. Nice score on the 402 big block though, funny that you didn't open the hood until you were home. Had you been counting on a SB 400 you would've been confused for sure.