I had a 02/69 351-2v in a Dearborn Cougar that had the brass block on the oil cap. ....................
Interesting that there were still some of those still in the system at Dearborn. Have a number of examples build two months prior to your example. Guess we need to look to see if we can find more examples to support your finding Bottom picture in my last post was sold on Dec 10th Haven't looked up the other example yet
Other examples I have pictures with the plastic elbow include. This is a V8 engine detail for others reading the thread. Just focusing on the first half or so of production at Dearborn on this survey
The following had/have plastic elbows from the pictures I have. None are restored cars.
9F02R1000xx
9F02S108xxx Scheduled build of 11J?
9F02R1122xx Scheduled build of 09K
9F03F1150xx Scheduled build of 14K
9F02R1193xx
9F01F1196xx
9F01H1227xx Scheduled build of 05L
9F01H1267xx
9F03H1298xx
9F01S1348xx
9F01H1365xx Scheduled build of09M
9F02Q1384xx
9F01H1419xx
If this discussion develops we're separate it and use it as the start of of a new thread focused on the elbows alone. Might be a good idea anyway since I don't recall an established one on 69's