Pontiac Windage Tray & Oil Baffle Tech. Including dates and pictures within the link here.
https://www.gtoforum.com/threads/pon...e-tech.137776/
Similar information regarding production dates within the H-O Racing Pontiac book where it was stated "Pontiac has used windage trays on all their V-8's up though mid-1973".
( Information provided in this post does not represent any endorsement. And unless specified it is not based on personal experience and is offered for general interest only )
Note the comment and pictures regarding the full length tray was more prone to cracking. That happened to one I installed many years ago.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE