273 commando. How 2 tell?

Yyyyeeessss!!!!....lol

Pistons, valve covers, 4 bbl cast intake and carb, chrome unsilenced air cleaner, dual-point dizzy, and if the car is available, an "E" in the VIN.....Nuff?

An E? In 66 a "D" designates 273 and nothing in the vin tells that it is a HP-4 barrell engine