How to verify a 5.9 Magnum Motor

[belmateo]

I have a 1999 5.9 Magnum motor out of a ram truck listed on CL™
Multiple would be buyers want the VIN number from the truck (which I don't have) in order to make sure it is not a 5.2 Engine.
Is there any other way to verify what size motor it is?
Thanks

 

[dano]

5302006 cast into the side of the block for 5.9 engines.

 

[408 swinger]

Also look for big scallop out of balancer.