I had to replace these lines on both engines the orginal fittings are very hard to find but you can make up something close from standard fittings, see the notes on my web page.
http://www.canadianmilitarypattern.c...tingPage2.html
I have also come across 216 engines were the oil line had been relocated to out side the engine and through the valve cover. The original design has the advantage of running the oil pipe through the cooling water in the block. This can also be a source of water in the oil or oil in the radiator if the line leaks.
Hope this helps.