Aren`t older Hemi`s unmistakeable? Far as I remember the plug wires are run into the valve covers. This is why I always tell people do your homework before you lay down your cash or you`ll get taken. Always know what your buying. There is no excuse for not doing 5 minutes of research online to find out if what your looking at is what the seller says it is.
Good old american tradition of trust and honesty. That`s been gone over 50 years and it`s not coming back. Trust nobody, let them earn it. Never take somebody`s word on anything, varify it by doing research to be sure what your looking to buy is what your told it is. If the engine is not a Hemi and you just laid down a fair amount of cash then your going to be a bit upset.