Identifying a crate motor

Supposedly on this crate motor the motor has been sitting for approximately little over three and a half years the gentlmen that bought it ,his intentions to put the 5.7 Hemi into a b body time pasted on and now everything's for sale but he never knew to get paperwork or documentation on the motor I was hoping to find out if there's other way of identifying other than compression testing taking it all apart. thank you for the response I will look into the serial number.