Per what I know, the windage tray was part of the Magnum engine setup along with the HP manifolds, unsilenced air cleaner ( on those years were they exist ), HP cam, dual timing chain setup, sping valve with dampeners... That's at least with Big blocks
Talking about the early 90s -2000s Magnum 5.2 and Magnum 5.9, not the early 340 and big block magnums.
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