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The Moroso windage tray for Chevrolet big-block Mark IV engines is made to fit the older-style part number 20385. Intended as an internal oil-control option for Mark IV big-blocks, it helps limit windage and manage oil splash in engines built around that legacy configuration. This tray supports restorations and performance builds that require compatibility with the old-style 20385 setup.
Moroso Chevrolet Big Block Mark IV Windage Tray (For Part No 20385 Old Style)
