k,
I removed 1 of the heads from the engine in the truck. I found "E6SE" under the #3 exhaust port and 6E0 between the #5 AND #7 valve spring assemblies under the valve cover.
Saw other strings in this forum. 'Seems some people REALLY don't like E6SE heads. Some think they're salvageable. Somebody said the E6SE heads came out a '86 'Stang others say they were used in trucks/crown vic 'til '91 so I guess this means this is not a "roller motor" I can also say it basically has flat top piston heads with a slight circular indention on @ 2/3rds in the center. Your thoughts?