327 endurance engien?

HI
Is ther anybody who can help me decod a 327 chevrolet engien
I think this engien came from a opel diplomat built in germany by GM
in 1965.
The numbers on the engien is.
VO419F22
54S-0008226
Here is an nteresting link on the subject:
The Opel Diplomat 5.4 Coupé - Autosavant | Autosavant
Claes Nilsson
Sweden