MotorHome engine

[440 Fanatic]

hey Folks,
Been a while since I've posted here.

I have a friend that says he has a 1968 winnebago motorhome with a 440 engine, and the price is right.
I immediately questioned it having a 440 and showed him on  my 440 in my   Charger where the engine pad would be.
All I wanted is the engine if it's a 440.  Seems it's a 413 , possibly industrial engine due to possible year of production.
If anyone can help with block pad nums,  they are :  J413  below that is   8   17&

Any info is appreciated.
Thanks,  

Jeep

[440 Fanatic]

corrected my post

[Musicman]

J413 = 1973  413 CID

8/17 = Date

& = unknown symbol?