I have torn down 2 Windsors from the 90s. They were both zero deck. The one I am using, so far I have plasti-gauged the original main bearings (which had very little wear) and they were all between .0013-.0017. Crank looked spotless. A mass produced factory engine with stunning tolerances. I cant say the same for the first 3 decades, but I am REALLY liking what I see in the 4th decade. Those 400 dollar Explorer 302s in u-pull-it are golden.
CNC machining helps a lot on the quality after around 1985 (IMO) 71+ QC was in the toilet. 75K out of a 60s 70s engine was about smoker time. 95+ 200K is the norm.
