Please be sure you get it right before you start the engine. I got mine backwards by accident and cost myself a set of bearings on my very first startup.
Oil will not flow backwards through the
oil filter.
Unfortunately I am not where I can look at the orientation for you, but I seem to remember that the
oil filters are fed from the outside and return from the inside. The plate on the engine has the sender on the RETURN line from the filter, meaning that your oil pressure is measured AFTER the filter.
Somebody please correct me if I'm wrong here.
-Scouder