Noob V8 Mopar question

[Turboomni]

Going to be looking at a car for sale. Person states it has a 440 and I do not doubt him but what can I look for to make sure it is a 440 not a 383?
Biggest Mopar V8 I ever owned was a 360 so this is new to me.
thanks

 

[polarus]

440's have a flat pad with the engine ID near the left front (driver side) cylinder head.

 

[66/440]

Tell a 383 from a 440

 

[Turboomni]

Thanks guys,,sorry I should have done a search but I really appreciate your help.