My '86 has factory AC, which is not working, and I plan on removing
it. But I was wondering about the little AC rad at the front of van,
and the lines to and from it. Are those lines, and rad, suitable for
an oil cooler application?

I have no idea what material the lines are made of, and what the
inside diameter is. Nor do I know anything about the little rad.

cheers

alistair