Posted for "Marc Wiese" <cardmarc@midsouth.rr.com>:

Rusty,

Have you checked the pipe banjo fittings that use a drilled thru bolt as
in the original engine? They are close profile and might fit. And yes,
it is the return line from the oil cooler that goes there. The supply
line comes from the base of the filter (on the car-FD type)

Marc Wiese