I've been reading the Charles R. Morris book "Ford Y-Block a Performance History" and found the information about the Lincoln Y-Block interesting. I never saw one of these engines back in the day, probably because there weren't many Lincolns in my neighborhood.  I understand these engines were used in Turnpike Cruisers?   The port layout used in the Lincoln engines was similar to an FE.  My guess is Ford developed both engines separately and used knowledge gained from both when they made the FE?   I always thought the Y-Block was replaced because of limited displacement growth?  Why didn't they offer the Lincoln engine in all Fords?  Perhaps cost was an issue. Whatever the reason, the FE turned out well enough.

my last y block car was in 1970.was married in 71 and that was the end of old cars for me.all of the y block powered car were gone from here by that time due to rust and none were made after 58 anyway.didnt get another untill 2002.a 56 customline.a long wait.

Right after we married in 1965, I bought a 56 Ford Victoria off a car lot.  It had a 292 with a three speed on the floor.  It had a bad starter and I didn't have the money to fix it, so I always tried to park it on a hill.  Since there weren't many hills in Miami, I carried jumper cables in my trunk.  I got caught a few times jumping my car from other people's cars without permission.  Those were the days.....